CVE-2024-27395

HIGH

Linux Kernel 4.18-6.8.8 Use-After-Free in ovs_ct_exit

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix Use-After-Free in ovs_ct_exit Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal of ovs_ct_limit_exit, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.

References (12)

Core 12
Core References

Scores

CVSS v3 7.8
EPSS 0.0002
EPSS Percentile 4.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-416
Status published
Products (28)
debian/debian_linux 10.0
linux/Kernel 4.18.0 - 4.19.313linux
linux/Kernel 4.20.0 - 5.4.275linux
linux/Kernel 5.11.0 - 5.15.158linux
linux/Kernel 5.16.0 - 6.1.90linux
linux/Kernel 5.5.0 - 5.10.216linux
linux/Kernel 6.2.0 - 6.6.30linux
linux/Kernel 6.7.0 - 6.8.9linux
Linux/Linux < 4.18
Linux/Linux 11efd5cb04a184eea4f57b68ea63dddd463158d1 - 2db9a8c0a01fa1c762c1e61a13c212c492752994
... and 18 more
Published May 14, 2024
Tracked Since Feb 18, 2026