CVE-2021-1820

mediumPriorität · verfolgen · 26EPSS 0.013 · 71. PerzentilEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.34% (71st) EPSS

CVSS 4.3 · medium

Is it mine?

1,270 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · bewertet 2026-10-27

A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

Behobenwebkit2gtk3-0:2.30.4-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-0:2.30.4-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-0:2.30.4-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-0:2.30.4-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-0:2.30.4-1.el8.src as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-0:2.30.4-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-debuginfo-0:2.30.4-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-debuginfo-0:2.30.4-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-debuginfo-0:2.30.4-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-debuginfo-0:2.30.4-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-debuginfo-0:2.30.4-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-debugsource-0:2.30.4-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-debugsource-0:2.30.4-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-debugsource-0:2.30.4-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-debugsource-0:2.30.4-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-debugsource-0:2.30.4-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-devel-0:2.30.4-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-devel-0:2.30.4-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-devel-0:2.30.4-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-devel-0:2.30.4-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-devel-0:2.30.4-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-devel-debuginfo-0:2.30.4-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-devel-debuginfo-0:2.30.4-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-devel-debuginfo-0:2.30.4-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-devel-debuginfo-0:2.30.4-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-devel-debuginfo-0:2.30.4-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-0:2.30.4-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-0:2.30.4-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-0:2.30.4-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-0:2.30.4-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-0:2.30.4-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-debuginfo-0:2.30.4-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-debuginfo-0:2.30.4-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-debuginfo-0:2.30.4-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-debuginfo-0:2.30.4-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-debuginfo-0:2.30.4-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-devel-0:2.30.4-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-devel-0:2.30.4-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-devel-0:2.30.4-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-devel-0:2.30.4-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-devel-0:2.30.4-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-devel-debuginfo-0:2.30.4-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-devel-debuginfo-0:2.30.4-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-devel-debuginfo-0:2.30.4-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-devel-debuginfo-0:2.30.4-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586
Behobenwebkit2gtk3-jsc-devel-debuginfo-0:2.30.4-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2021:1586

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

6.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 8.6 · Auswirkung 2.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 3.6

v3.16.5mediumAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · Red Hat Product Security US

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-665USprimärCWE-20USCWE-668US

betroffene Produkte (1,270)

Betroffene Produkte und Versionsbereiche.

Apple iOS and iPadOSunspecified → 14.5enisa_euvdEU
Apple macOSunspecified → 11.3enisa_euvdEU
Apple tvOSunspecified → 14.5enisa_euvdEU
Apple watchOSunspecified → 7.4enisa_euvdEU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.1fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 9fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 11fstec_bduRU
Сообщество свободного программного обеспечения WPE WebKit≤ 2.30.0fstec_bduRU
Сообщество свободного программного обеспечения WebKitGTK≤ 2.30.0fstec_bduRU
apple ipados< 14.5nvdUScpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone os< 14.5nvdUScpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos11.0 → 11.3nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos< 14.5nvdUScpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple watchos< 7.4nvdUScpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
OpenEXR-0:2.2.0-12.el8.src as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionennot affectedredhat_csafUS
OpenEXR-debuginfo-0:2.2.0-12.el8.aarch64 as a component of Red Hat CodeReady Linux Builder (v. 8)alle Versionennot affectedredhat_csafUS
OpenEXR-debuginfo-0:2.2.0-12.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionennot affectedredhat_csafUS
OpenEXR-debuginfo-0:2.2.0-12.el8.i686 as a component of Red Hat CodeReady Linux Builder (v. 8)alle Versionennot affectedredhat_csafUS
OpenEXR-debuginfo-0:2.2.0-12.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionennot affectedredhat_csafUS

20 von 1,270 angezeigt

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

RHSA-2021:1586Red Hat Security Advisory: GNOME security, bug fix, and enhancement update2021-05-18csaf · redhat_csafUS
An update for GNOME is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu nvd redhat_csaf NVD CVE.org MITRE

veröffentlicht 2021-09-08geändert 2026-06-17

verwandt (659)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2024-50302US	medium5.5OT kritisch	0.81% (57th)	KEV	2024-11-19
In the Linux kernel, the following vulnerability has been resolved: HID: core: zero-initialize the report buffer Since the report buffer is used by all kinds of drivers in variou…
CVE-2023-49105US	critical9.8OT kritisch	43.2% (99th)	KEV	2023-11-21
An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, an…
CVE-2022-0847US	high7.8OT kritisch	92.8% (100th)	KEV	2022-03-10
A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux ker…
CVE-2020-27950US	medium5.5OT kritisch	16.5% (97th)	KEV	2020-12-08
A memory initialization issue was addressed. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Upd…
CVE-2013-1675US	medium6.5OT kritisch	6.70% (94th)	KEV	2013-05-16
Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 do not properly initialize data structures for the ns…

+654 weitere

Referenzen (23)

Externe Belege — Patches, Meldungen, Analysen.

scry

Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.

Kostenloser Scan