CVE-2023-4622
Linux unix_set vulnerability Use-After-Free
Description
A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.
INFO
Published Date :
Sept. 6, 2023, 2:15 p.m.
Last Modified :
Feb. 13, 2025, 6:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2023-4622 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-4622.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Shell
None
C Makefile Assembly
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-4622 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-4622 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Feb. 13, 2025
Action Type Old Value New Value Changed Description A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.1.y&id=790c2f9d15b594350ae9bca7b236f2b1859de02c Added Reference https://kernel.dance/790c2f9d15b594350ae9bca7b236f2b1859de02c Added Reference https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Added Reference https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html Added Reference https://www.debian.org/security/2023/dsa-5492 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jan. 11, 2024
Action Type Old Value New Value Added Reference Google Inc. https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html [No types assigned] -
CVE Modified by [email protected]
Nov. 29, 2023
Action Type Old Value New Value Added Reference Google Inc. http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html [No types assigned] -
Modified Analysis by [email protected]
Oct. 29, 2023
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing List, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 6.4.15 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.2 up to (excluding) 6.1.47 Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 20, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 11, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.1.y&id=790c2f9d15b594350ae9bca7b236f2b1859de02c No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.1.y&id=790c2f9d15b594350ae9bca7b236f2b1859de02c Issue Tracking, Mailing List, Patch, Vendor Advisory Changed Reference Type https://kernel.dance/790c2f9d15b594350ae9bca7b236f2b1859de02c No Types Assigned https://kernel.dance/790c2f9d15b594350ae9bca7b236f2b1859de02c Patch, Vendor Advisory Changed Reference Type https://www.debian.org/security/2023/dsa-5492 No Types Assigned https://www.debian.org/security/2023/dsa-5492 Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 6.4.15 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 10, 2023
Action Type Old Value New Value Added Reference https://www.debian.org/security/2023/dsa-5492 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-4622 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-4622
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.03 }} -0.08%
score
0.07625
percentile