01 Record

CVE-2023-52772

af_unix: fix use-after-free in unix_stream_read_actor()

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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02 Description

af_unix: fix use-after-free in unix_stream_read_actor()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 15.3% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-05-21 15:30Z2 YR AGO

Last updated

2026-08-05 09:11Z2 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

c0981a058b4da87f5d45cbf79d9374f46e66cc751507f652a8af5f0262e9a6a1

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux876c14ad014d0e39c57cbfde53e13d17cdb6d645 to < 75bcfc188abf4fae9c1d5f5dc0a03540be602eef, 876c14ad014d0e39c57cbfde53e13d17cdb6d645 to < d179189eec426fe4801e4b91efa1889faed12700, 876c14ad014d0e39c57cbfde53e13d17cdb6d645 to < eae0b295ce16d8c8b4114c3037993191b4bb92f0, 876c14ad014d0e39c57cbfde53e13d17cdb6d645 to < 069a3ec329ff43e7869a3d94c62cd03203016bce, 876c14ad014d0e39c57cbfde53e13d17cdb6d645 to < 4b7b492615cf3017190f55444f7016812b66611d, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/75bcfc188abf4fae9c1d5f5dc0a03540be602eef
git.kernel.orghttps://git.kernel.org/stable/c/d179189eec426fe4801e4b91efa1889faed12700
git.kernel.orghttps://git.kernel.org/stable/c/eae0b295ce16d8c8b4114c3037993191b4bb92f0
git.kernel.orghttps://git.kernel.org/stable/c/069a3ec329ff43e7869a3d94c62cd03203016bce
git.kernel.orghttps://git.kernel.org/stable/c/4b7b492615cf3017190f55444f7016812b66611d

07 Fixed in

Debian 12

linux
Fixed in 6.1.64-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.6.8-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.6.8-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.