Use After Free in Linux

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. We need to hold rcu_read_lock() to make sure the dst and associated idev are alive.

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (52.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-44986: held from 0.007 to 0.007.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

  • Linux — versions ded37d03440d0ab346a8287cc2ba88b8dc90ceb0, 5.14, 2323690eb05865a657709f4d28eb9538ea97bfc2
  • Linux Kernel — versions 6.11
  • Debian Linux — versions 11.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-44986?
CVE-2024-44986 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 8.1/10. Published 2024-09-04.
How severe is CVE-2024-44986?
High severity. CVSS v3 base score is 8.1 out of 10.