CVE-2021-29650
MEDIUMLinux Kernel < 5.11.11 - Denial of Service via Netfilter Table Assignment
Title source: llmDescription
An issue was discovered in the Linux kernel before 5.11.11. The netfilter subsystem allows attackers to cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h lack a full memory barrier upon the assignment of a new table value, aka CID-175e476b8cdf.
References (7)
Core 7
Core References
Mailing List, Patch, Vendor Advisory x_refsource_misc
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.11
Mailing List, Patch, Vendor Advisory x_refsource_misc
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=175e476b8cdf2a4de7432583b49c871345e4f8a1
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WKRNELXLVFDY6Y5XDMWLIH3VKIMQXLLR/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RZGMUP6QEHJJEKPMLKOSPWYMW7PXFC2M/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VTADK5ELGTATGW2RK3K5MBJ2WGYCPZCM/
Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
Scores
CVSS v3
5.5
EPSS
0.0041
EPSS Percentile
33.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
Status
published
Products (5)
debian/debian_linux
9.0
fedoraproject/fedora
32
fedoraproject/fedora
33
fedoraproject/fedora
34
linux/linux_kernel
< 5.11.11
Published
Mar 30, 2021
Tracked Since
Feb 18, 2026