ipv6: fix possible UAF in ip6_finish_output2()
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 5.4.289, 5.10.233, 5.14, 5.15.166, 6.1.107, and 2 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in ip6_finish_output2() If skb_expand_head() returns NULL, skb has been freed and associated dst/idev could also have been freed. We need to hold rcu_read_lock() to make sure the dst and associated idev are alive.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From ded37d03440d0ab346a8287cc2ba88b8dc90ceb0 · fixed in ae8512e93f4ce47614ca89defaec1b93e00697b8; From 2323690eb05865a657709f4d28eb9538ea97bfc2 · fixed in 1504108cb6020df7b1a31c9bb80fd587470aa448; From 5796015fa968a3349027a27dcd04c71d95c53ba5 · fixed in e891b36de161fcd96f12ff83667473e5067b9037; From 5796015fa968a3349027a27dcd04c71d95c53ba5 · fixed in 3574d28caf9a09756ae87ad1ea096c6f47b6101e; From 5796015fa968a3349027a27dcd04c71d95c53ba5 · fixed in 6ab6bf731354a6fdbaa617d1ec194960db61cf3b; From 5796015fa968a3349027a27dcd04c71d95c53ba5 · fixed in 56efc253196751ece1fc535a5b582be127b0578a; From 5796015fa968a3349027a27dcd04c71d95c53ba5 · fixed in da273b377ae0d9bd255281ed3c2adb228321687b; From 5.4.137 · fixed in 5.4.289; From 5.10.55 · fixed in 5.10.233; From 5.13.7 · fixed in 5.14
- Linux Linux
5.14
- KernelLinux
fixed in 5.4.289; From 5.5.0 · fixed in 5.10.233; From 5.11.0 · fixed in 5.15.166; From 5.14.0 · fixed in 6.1.107; From 5.16.0 · fixed in 6.6.48; From 6.2.0 · fixed in 6.10.7
References 7
git.kernel.org
- stable/c/ae8512e93f4ce47614ca89defaec1b93e00697b8
- stable/c/1504108cb6020df7b1a31c9bb80fd587470aa448
- stable/c/e891b36de161fcd96f12ff83667473e5067b9037
- stable/c/3574d28caf9a09756ae87ad1ea096c6f47b6101e
- stable/c/6ab6bf731354a6fdbaa617d1ec194960db61cf3b
- stable/c/56efc253196751ece1fc535a5b582be127b0578a
- stable/c/da273b377ae0d9bd255281ed3c2adb228321687b