CVE-2023-23454

cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12	Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://www.debian.org/security/2023/dsa-5324	Third Party Advisory
https://www.openwall.com/lists/oss-security/2023/01/10/1	Mailing List Third Party Advisory
https://www.openwall.com/lists/oss-security/2023/01/10/4	Mailing List Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12	Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://www.debian.org/security/2023/dsa-5324	Third Party Advisory
https://www.openwall.com/lists/oss-security/2023/01/10/1	Mailing List Third Party Advisory
https://www.openwall.com/lists/oss-security/2023/01/10/4	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-01-12 07:15

Updated : 2025-03-20 21:15

NVD link : CVE-2023-23454

Mitre link : CVE-2023-23454

CVE.ORG link : CVE-2023-23454

JSON object : View

Products Affected

linux

linux_kernel

debian

debian_linux

CWE

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

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