CVE-2024-44985
CRITICAL severity · CVSS 9.8 · Use-after-free
9.8CVSS CRITICAL
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible UAF in ip6_xmit() If skb_expand_head() returns NULL, skb has been freed and the associated dst/idev could also have been freed. We must use rcu_read_lock() to prevent a possible UAF.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/124b428fe28064c809e4237b0b38e97200a8a4a8 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/124b428fe28064c809e4237b0b38e97200a8a4a8Patch
- https://git.kernel.org/stable/c/2d5ff7e339d04622d8282661df36151906d0e1c7Patch
- https://git.kernel.org/stable/c/38a21c026ed2cc7232414cb166efc1923f34af17Patch
- https://git.kernel.org/stable/c/975f764e96f71616b530e300c1bb2ac0ce0c2596Patch
- https://git.kernel.org/stable/c/fc88d6c1f2895a5775795d82ec581afdff7661d1Patch
- https://git.kernel.org/stable/c/b3a3d5333c13a1be57499581eab4a8fc94d57f36
- https://git.kernel.org/stable/c/c47e022011719fc5727bca661d662303180535ba
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html