CVE-2023-3611
HIGHLinux Kernel 3.8-4.14.322 - Out-of-Bounds Write in sch_qfq Component
Title source: llmDescription
An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks. We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.
References (7)
Core 7
Core References
Patch, Vendor Advisory
https://kernel.dance/3e337087c3b5805fe0b8a46ba622a962880b5d64
Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20230908-0002/
Third Party Advisory
https://www.debian.org/security/2023/dsa-5480
Third Party Advisory
https://www.debian.org/security/2023/dsa-5492
Mailing List, Patch, Vendor Advisory patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64
Scores
CVSS v3
7.8
EPSS
0.0001
EPSS Percentile
3.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (5)
debian/debian_linux
10.0
debian/debian_linux
11.0
debian/debian_linux
12.0
linux/linux_kernel
6.5 rc1
linux/linux_kernel
3.8 - 4.14.322
Published
Jul 21, 2023
Tracked Since
Feb 18, 2026