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CVE-2023-6932

Use-after-free in Linux kernel's ipv4: igmp component

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Debian ≫ Debian Linux Version 10.0
Linux ≫ Linux Kernel Version < 4.14.332
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.301
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.263
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.203
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.142
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.66
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.37% 0.287
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7 1 5.9
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
cve-coordination@google.com 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
Third Party Advisory
Mailing List
http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html
Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=e2b706c691905fe78468c361aaabc719d0a496f1
Patch
Mailing List
https://kernel.dance/e2b706c691905fe78468c361aaabc719d0a496f1
Patch
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://cert-portal.siemens.com/productcert/html/ssa-613116.html