Use-after-free in Linux kernel's netfilter subsystem
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.9%
exploitation probability
0.9%top 43% of all CVEs
observed exploitation
nono source reports it
A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c.
Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue.
We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · Linux KernelReferences
http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.htmlhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1240eb93f0616b21c675416516ff3d74798fdc97https://kernel.dance/1240eb93f0616b21c675416516ff3d74798fdc97https://lists.debian.org/debian-lts-announce/2023/08/msg00001.htmlhttps://lists.debian.org/debian-lts-announce/2024/01/msg00004.htmlhttps://lists.debian.org/debian-security-announce/2023/msg00140.htmlhttps://lists.debian.org/debian-security-announce/2023/msg00153.htmlhttps://packetstorm.news/tos/aHR0cHM6Ly9wYWNrZXRzdG9ybS5uZXdzL2ZpbGVzLzE3NDU3Ny9LZXJuZWwtTGl2ZS1QYXRjaC1TZWN1cml0eS1Ob3RpY2UtTFNOLTAwOTctMS5odG1sIDE3ODQ3MjE0NzIgODFlMjk3ZjBmM2FiMTIwOTI5Nzg0ZmRlNGM2NWNjNjBhMThhMzBiOGE5NjQ0YzQ0NTFhMzJlZjhiNTk1ZTk2Yg==https://security.netapp.com/advisory/ntap-20230818-0004/https://www.debian.org/security/2023/dsa-5448https://www.debian.org/security/2023/dsa-5461