Detections
Analytics

CVE-2023-31436

high

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

https://www.debian.org/security/2023/dsa-5402

https://security.netapp.com/advisory/ntap-20230609-0001/

https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html

http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html

http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html

https://www.spinics.net/lists/stable-commits/msg294885.html

https://github.com/torvalds/linux/commit/3037933448f60f9acb705997eae62013ecb81e0d

https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.13

http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html

Details

Source: Mitre, NVD

Published: 2023-04-28

Updated: 2024-10-21

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00087