Vulnerability Details : CVE-2023-6531
A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on.
Vulnerability category: Memory Corruption
Products affected by CVE-2023-6531
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.7:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-6531
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-6531
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST | 2024-01-29 |
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
Red Hat, Inc. | 2024-01-21 |
CWE ids for CVE-2023-6531
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: secalert@redhat.com (Primary)
References for CVE-2023-6531
-
https://access.redhat.com/security/cve/CVE-2023-6531
CVE-2023-6531- Red Hat Customer PortalThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=2253034
2253034 – (CVE-2023-6531) CVE-2023-6531 kernel: GC's deletion of an SKB races with unix_stream_read_generic() leading to UAFIssue Tracking
-
https://access.redhat.com/errata/RHSA-2024:2394
RHSA-2024:2394 - Security Advisory - Red Hat Customer Portal
-
https://lore.kernel.org/all/c716c88321939156909cfa1bd8b0faaf1c804103.1701868795.git.asml.silence@gmail.com/
[PATCH 1/1] io_uring/af_unix: disable sending io_uring over sockets - Pavel BegunkovMailing List;Patch
Jump to