vulnerability
Amazon Linux AMI: CVE-2023-3611: Security patch for kernel (ALAS-2023-1792)
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | 07/21/2023 | 08/09/2023 | 01/28/2025 |
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
References

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