CVE-2020-36694

An issue was discovered in netfilter in the Linux kernel before 5.10. There can be a use-after-free in the packet processing context, because the per-CPU sequence count is mishandled during concurrent iptables rules replacement. This could be exploited with the CAP_NET_ADMIN capability in an unprivileged namespace. NOTE: cc00bca was reverted in 5.12.
Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

06 Jun 2023, 18:41

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 9.8
v2 : unknown
v3 : 6.7

26 May 2023, 03:35

Type Values Removed Values Added
References (MISC) https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc00bcaa589914096edef7fb87ca5cee4a166b5c - (MISC) https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc00bcaa589914096edef7fb87ca5cee4a166b5c - Mailing List, Patch
References (MISC) https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10 - (MISC) https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10 - Release Notes
References (MISC) https://syzkaller.appspot.com/bug?id=0c4fd9c6aa04ec116d01e915d3b186f71a212cb2 - (MISC) https://syzkaller.appspot.com/bug?id=0c4fd9c6aa04ec116d01e915d3b186f71a212cb2 - Exploit, Third Party Advisory
References (MISC) https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12 - (MISC) https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12 - Release Notes
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 9.8
CWE CWE-416
First Time Linux linux Kernel
Linux

21 May 2023, 23:15

Type Values Removed Values Added
New CVE

Information

Published : 2023-05-21 23:15

Updated : 2023-06-06 18:41


NVD link : CVE-2020-36694

Mitre link : CVE-2020-36694


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free