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CVE-2024-44986

HIGHCVSS 7.8/10EPSS 0.24%

Last modified

CVE-2024-44986 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.24%

14.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
DebianDebian Linux11.0—
LinuxLinux Kernel>= 5.4.137, < 5.4.289—
LinuxLinux Kernel>= 5.10.55, < 5.10.233—
LinuxLinux Kernel>= 5.13.7, < 5.15.166—
LinuxLinux Kernel>= 5.16, < 6.1.107—
LinuxLinux Kernel>= 6.2, < 6.6.48—
LinuxLinux Kernel>= 6.7, < 6.10.7—
LinuxLinux Kernel6.11Rc1

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is 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.
How severe is CVE-2024-44986?
CVE-2024-44986 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2024-44986?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-44986?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST