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CVE-2023-6932

nvd nist
Published: Dec 19, 2023Modified: Jun 17, 2026

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7.0
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.0 / Impact: 5.9
Source: NVD

Description

A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve local privilege escalation. A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object which is freed by another thread. We recommend upgrading past commit e2b706c691905fe78468c361aaabc719d0a496f1.

Affected (8)

Debian
1 product
Debian Linux
Linux
1 product
Linux Kernel
Configuration A
8 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 10.0
Linux
Linux Kernel
Before 4.14.332
Linux Kernel
From 4.15 to 4.19.301
Linux Kernel
From 4.20 to 5.4.263
Linux Kernel
From 5.11 to 5.15.142
Linux Kernel
From 5.16 to 6.1.66
Linux Kernel
From 5.5 to 5.10.203
Linux Kernel
From 6.2 to 6.6.5

Related CWEs

CWE-416
Use After Free
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (14)

Source: cve-coordination@google.com
Third Party Advisory
Source: cve-coordination@google.com
Mailing ListPatch
Source: cve-coordination@google.com
Patch
Source: cve-coordination@google.com
Mailing ListThird Party Advisory
Source: cve-coordination@google.com
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListPatch
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

Timeline

No history available yet.