CVE-2023-52983

highpriority · track · 0EPSS 0.003 · 21 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.28% (21st) EPSS

CVSS 7.8 · high

Is it mine?

52 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in bic_set_bfqq() After commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'"), bic->bfqq will be accessed in bic_set_bfqq(), however, in some context bic->bfqq will be freed, and bic_set_bfqq() is called with the freed bic->bfqq. Fix the problem by always freeing bfqq after bic_set_bfqq().

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedkernel-default-0:5.3.18-150300.59.235.1.aarch64 as component of SUSE Linux Enterprise Micro 5.2suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-default-0:5.3.18-150300.59.235.1.s390x as component of SUSE Linux Enterprise Micro 5.2suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-default-0:5.3.18-150300.59.235.1.x86_64 as component of SUSE Linux Enterprise Micro 5.2suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-default-base-0:5.3.18-150300.59.235.1.150300.18.140.1.aarch64 as component of SUSE Linux Enterprise Micro 5.2suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-default-base-0:5.3.18-150300.59.235.1.150300.18.140.1.x86_64 as component of SUSE Linux Enterprise Micro 5.2suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-rt-0:5.3.18-150300.235.1.x86_64 as component of SUSE Linux Enterprise Micro 5.2suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-source-rt-0:5.3.18-150300.235.1.noarch as component of SUSE Linux Enterprise Micro 5.2suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.5–7.8

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

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

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416USCWE-416US

affected products (52)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Dell Avamarall versionscert_bundDEcpe:/a:dell:avamar:-
Dell NetWorkerall versionscert_bundDEcpe:/a:dell:networker:-
Dell NetWorker Virtual Editionall versionscert_bundDEcpe:/a:dell:networker:virtual_edition
Google Container-Optimized OSall versionscert_bundDEcpe:/o:google:container-optimized_os:-
Open Source Linux Kernelall versionscert_bundDEcpe:/o:linux:linux_kernel:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Siemens SIMATIC S7 1500 CPUall versionscert_bundDEcpe:/h:siemens:simatic_s7:1500_cpu
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Dell Networker≤ vProxy <19.14cert_bundDE
Dell Secure Connect Gateway≤ Appliance <5.32.00.18cert_bundDE
SolarWinds Security Event Manager< 2025.2.1cert_bundDE
Linux Linux≤ b22fd72bfebd…enisa_euvdEU
Linux Linux094f3d9314d6… → 511c922c5bf6…enisa_euvdEU
Linux Linux5.15.86 → 5.15.93enisa_euvdEU
Linux Linux5533742c7cb1… → 7f77f3dab506…enisa_euvdEU

showing 20 of 52

advisories (3)

Vendor and ecosystem advisories describing this.

SUSE-SU-2026:0475-1Security update for the Linux Kernel2026-02-12csaf · suse_csafDE
Security update for the Linux Kernel
SUSE-SU-2026:0495-1Security update for the Linux Kernel2026-02-13csaf · suse_csafDE
Security update for the Linux Kernel
WID-SEC-W-2025-0649Linux Kernel: Mehrere SchwachstellenDeutsch2025-03-27csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder nicht spezifizierte Effekte zu erzielen.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund suse_csaf NVD CVE.org MITRE

published 2025-03-27modified 2026-06-17

references (14)

External citations — patches, advisories, analysis.

scry

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