CVE-2023-1583

mediumpriority · track · 22EPSS 0.002 · 11 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.21% (11th) EPSS

CVSS 5.5 · medium

Is it mine?

18 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A NULL pointer dereference was found in io_file_bitmap_get in io_uring/filetable.c in the io_uring sub-component in the Linux Kernel. When fixed files are unregistered, some context information (file_alloc_{start,end} and alloc_hint) is not cleared. A subsequent request that has auto index selection enabled via IORING_FILE_INDEX_ALLOC can cause a NULL pointer dereference. An unprivileged user can use the flaw to cause a system crash.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.15.5mediumAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 1.8 · impact 3.6

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476USprimaryCWE-476US

affected products (18)

Products and version ranges known to be affected.

Open Source Linux Kernelall versionscert_bundDEcpe:/o:linux:linux_kernel:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
n/a Linux kernel≤ affected kernel 5.19, 6.0, 6.1, 6.2, 6.3enisa_euvdEU
Novell Inc. SUSE Linux Enterprise Server for SAP Applications≤ 15 SP5fstec_bduRU
Novell Inc. SUSE Linux Enterprise Server for SAP Applications≤ 15 SP4fstec_bduRU
Novell Inc. Suse Linux Enterprise Desktop≤ 15 SP5fstec_bduRU
Novell Inc. Suse Linux Enterprise Desktop≤ 15 SP4fstec_bduRU
Novell Inc. Suse Linux Enterprise Server≤ 15 SP4fstec_bduRU
Novell Inc. Suse Linux Enterprise Server≤ 15 SP5fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.10fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 11fstec_bduRU
Сообщество свободного программного обеспечения Linux5.19 → 6.1.21fstec_bduRU
Сообщество свободного программного обеспечения Linux6.2.0 → 6.2.8fstec_bduRU
linux linux kernel5.19 → 6.1.22nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel6.2.0 → 6.2.9nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0756Linux Kernel: Schwachstelle ermöglicht Denial of ServiceDeutsch2023-03-26csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2023-03-24modified 2026-06-17

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+8782 more

references (9)

External citations — patches, advisories, analysis.

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