vulnerability

Amazon Linux AMI: CVE-2023-3611: Security patch for kernel (ALAS-2023-1792)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
07/21/2023
Added
08/09/2023
Modified
01/28/2025

Description

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.

Solution

amazon-linux-upgrade-kernel
Title
NEW

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