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CVE-2020-36694

CVE-2020-36694

CVSS 6.7 MEDIUMEPSS 0.4%CWE-416
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.7EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
21 May 2023Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
n/a · n/a

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References
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc00bcaa589914096edef7fb87ca5cee4a166b5chttps://security.netapp.com/advisory/ntap-20230622-0005/https://syzkaller.appspot.com/bug?id=0c4fd9c6aa04ec116d01e915d3b186f71a212cb2