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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2023-3611
HistoryJul 21, 2023 - 9:15 p.m.

CVE-2023-3611

2023-07-2121:15:11
Debian Security Bug Tracker
security-tracker.debian.org
15

7.5 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.2%

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.