CVE-2020-36694
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2020-36694
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-36694.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-36694
- Downstream
- Related
- Published
- 2023-05-21T23:15:08Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 CAPNETADMIN capability in an unprivileged namespace. NOTE: cc00bca was reverted in 5.12.
- References
-
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12
- https://security.netapp.com/advisory/ntap-20230622-0005/
- https://syzkaller.appspot.com/bug?id=0c4fd9c6aa04ec116d01e915d3b186f71a212cb2
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc00bcaa589914096edef7fb87ca5cee4a166b5c