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qfq_change_class in net/sched/sch_qfq.c in the Linux...

High severity Unreviewed Published Apr 28, 2023 to the GitHub Advisory Database • Updated Nov 29, 2023

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.

References

Published by the National Vulnerability Database Apr 28, 2023
Published to the GitHub Advisory Database Apr 28, 2023
Last updated Nov 29, 2023

Severity

High
7.8
/ 10

CVSS base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CVE ID

CVE-2023-31436

GHSA ID

GHSA-rwg2-cqg5-rjm4

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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