CVE-2019-20394

mediumPriorität · verfolgen · 36EPSS 0.028 · 86. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.81% (86th) EPSS

CVSS 6.8 · medium

Is it mine?

34 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · redhat_csaf

EPSS · bewertet 2026-10-28

A double-free is present in libyang before v1.0-r3 in the function yyparse() when a type statement in used in a notification statement. Applications that use libyang to parse untrusted input yang files may be vulnerable to this flaw, which would cause a crash or potentially code execution.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

Behobenlibyang-0:1.0.184-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-0:1.0.184-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-0:1.0.184-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-0:1.0.184-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-0:1.0.184-1.el8.src as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-0:1.0.184-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-cpp-debuginfo-0:1.0.184-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-cpp-debuginfo-0:1.0.184-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-cpp-debuginfo-0:1.0.184-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-cpp-debuginfo-0:1.0.184-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-cpp-debuginfo-0:1.0.184-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-debuginfo-0:1.0.184-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-debuginfo-0:1.0.184-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-debuginfo-0:1.0.184-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-debuginfo-0:1.0.184-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-debuginfo-0:1.0.184-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-debugsource-0:1.0.184-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-debugsource-0:1.0.184-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-debugsource-0:1.0.184-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-debugsource-0:1.0.184-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenlibyang-debugsource-0:1.0.184-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenpython3-libyang-debuginfo-0:1.0.184-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenpython3-libyang-debuginfo-0:1.0.184-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenpython3-libyang-debuginfo-0:1.0.184-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenpython3-libyang-debuginfo-0:1.0.184-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906
Behobenpython3-libyang-debuginfo-0:1.0.184-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHEA-2021:1906

cvss

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

8.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.8–8.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USAusnutzbarkeit 8.6 · Auswirkung 6.4

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 5.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17highCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · Red Hat Product Security US

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-415USprimärCWE-416US

betroffene Produkte (34)

Betroffene Produkte und Versionsbereiche.

n/a n/a≤ n/aenisa_euvdEU
cesnet libyang= 0.11nvdUScpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*
cesnet libyang= 0.12nvdUScpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*
cesnet libyang= 0.13nvdUScpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*
cesnet libyang= 0.14nvdUScpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*
cesnet libyang= 0.15nvdUScpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*
cesnet libyang= 0.16nvdUScpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*
cesnet libyang= 1.0nvdUScpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*
libyang-0:1.0.184-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-0:1.0.184-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-0:1.0.184-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-0:1.0.184-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-0:1.0.184-1.el8.src as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-0:1.0.184-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-cpp-debuginfo-0:1.0.184-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-cpp-debuginfo-0:1.0.184-1.el8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-cpp-debuginfo-0:1.0.184-1.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-cpp-debuginfo-0:1.0.184-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-cpp-debuginfo-0:1.0.184-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
libyang-debuginfo-0:1.0.184-1.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS

20 von 34 angezeigt

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

RHEA-2021:1906Red Hat Enhancement Advisory: libyang bug fix and enhancement update2021-05-18csaf · redhat_csafUS
An update for libyang is now available for Red Hat Enterprise Linux 8.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd redhat_csaf NVD CVE.org MITRE

veröffentlicht 2020-01-22geändert 2026-06-17

verwandt (1,210)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2026-33824US	—OT kritisch	77.1% (100th)	KEV	2026-04-14
Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
CVE-2025-62215US	—OT kritisch	4.46% (91st)	KEV	2025-11-11
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2021-22600US	high7.0OT kritisch	6.59% (94th)	KEV	2022-01-26
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgr…
CVE-2021-26411US	medium5.1OT kritisch	81.7% (100th)	KEV	2021-03-11
Internet Explorer Memory Corruption Vulnerability
CVE-2020-9859US	high7.8OT kritisch	0.83% (57th)	KEV	2020-06-05
A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6…

+1205 weitere

Referenzen (17)

Externe Belege — Patches, Meldungen, Analysen.

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