CVE-2023-3611

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64	Mailing List Patch Vendor Advisory
https://kernel.dance/3e337087c3b5805fe0b8a46ba622a962880b5d64	Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://security.netapp.com/advisory/ntap-20230908-0002/	Third Party Advisory
https://www.debian.org/security/2023/dsa-5480	Third Party Advisory
https://www.debian.org/security/2023/dsa-5492	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc1::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*
	cpe:2.3:o:debian:debian_linux:12.0:::::::*

History

No history.

Information

Published : 2023-07-21 21:15

Updated : 2024-01-11 19:15

NVD link : CVE-2023-3611

Mitre link : CVE-2023-3611

CVE.ORG link : CVE-2023-3611

JSON object : View

Products Affected

debian

debian_linux

linux

linux_kernel

CWE

CWE-787

Out-of-bounds Write

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