Vulnerability Details : CVE-2024-27395
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.
Vulnerability category: Memory Corruption
Products affected by CVE-2024-27395
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2024-27395
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 14 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2024-27395
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | 2025-01-14 |
CWE ids for CVE-2024-27395
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2024-27395
-
https://git.kernel.org/stable/c/9048616553c65e750d43846f225843ed745ec0d4
net: openvswitch: Fix Use-After-Free in ovs_ct_exit - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/edee0758747d7c219e29db9ed1d4eb33e8d32865
net: openvswitch: Fix Use-After-Free in ovs_ct_exit - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
[SECURITY] [DLA 3840-1] linux security updateMailing List
-
https://git.kernel.org/stable/c/589523cf0b384164e445dd5db8d5b1bf97982424
net: openvswitch: Fix Use-After-Free in ovs_ct_exit - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2
net: openvswitch: Fix Use-After-Free in ovs_ct_exit - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/bca6fa2d9a9f560e6b89fd5190b05cc2f5d422c1
net: openvswitch: Fix Use-After-Free in ovs_ct_exit - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/eaa5e164a2110d2fb9e16c8a29e4501882235137
net: openvswitch: Fix Use-After-Free in ovs_ct_exit - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/35880c3fa6f8fe281a19975d2992644588ca33d3
net: openvswitch: Fix Use-After-Free in ovs_ct_exit - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/2db9a8c0a01fa1c762c1e61a13c212c492752994
net: openvswitch: Fix Use-After-Free in ovs_ct_exit - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
[SECURITY] [DLA 3842-1] linux-5.10 security updateMailing List
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