CVE-2024-44986
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.71% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- debian/debian linux · linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/3574d28caf9a09756ae87ad1ea096c6f47b6101ePatch
- https://git.kernel.org/stable/c/56efc253196751ece1fc535a5b582be127b0578aPatch
- https://git.kernel.org/stable/c/6ab6bf731354a6fdbaa617d1ec194960db61cf3bPatch
- https://git.kernel.org/stable/c/da273b377ae0d9bd255281ed3c2adb228321687bPatch
- https://git.kernel.org/stable/c/e891b36de161fcd96f12ff83667473e5067b9037Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.