CVE-2023-4921
גבוהה 7.8
תיאור (מקור, אנגלית)
A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.
מדדים
- CVSS 3.1
-
7.8 (HIGH)
מקור הציון: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CWE
- CWE-416
מוצרים מושפעים
linux: linux kernel; debian: debian linux
קישורים
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=… ExploitMailing ListPatchVendor Advisory
- https://kernel.dance/8fc134fee27f2263988ae38920bc03da416b03d8 ExploitPatchVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=… ExploitMailing ListPatchVendor Advisory
- https://kernel.dance/8fc134fee27f2263988ae38920bc03da416b03d8 ExploitPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html Mailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html Mailing ListThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-769027.html