5.5

CVE-2022-41218

Exploit
In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused by refcount races, affecting dvb_demux_open and dvb_dmxdev_release.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version <= 5.19.10
Debian ≫ Debian Linux Version 11.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.78% 0.514
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA-ADP 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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/2023/03/msg00000.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://www.debian.org/security/2023/dsa-5324
Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/09/23/4
Third Party Advisory
Exploit
Mailing List
http://www.openwall.com/lists/oss-security/2022/09/24/1
Third Party Advisory
Exploit
Mailing List
http://www.openwall.com/lists/oss-security/2022/09/24/2
Third Party Advisory
Mailing List
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fd3d91ab1c6ab0628fe642dd570b56302c30a792
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/dvb-core/dmxdev.c
Vendor Advisory
https://lore.kernel.org/all/20220908132754.30532-1-tiwai%40suse.de/