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CVE-2023-23455

Good to know:

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Date: January 11, 2023

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

Language: C

Severity Score

Related Resources (11)

https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://www.openwall.com/lists/oss-security/2023/01/10/4
https://people.canonical.com/~ubuntu-security/cve/CVE-2023-23455
https://www.openwall.com/lists/oss-security/2023/01/10/1
https://access.redhat.com/security/cve/CVE-2023-23455
https://nvd.nist.gov/vuln/detail/CVE-2023-23455
https://www.debian.org/security/2023/dsa-5324
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
https://security-tracker.debian.org/tracker/CVE-2023-23455
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2965c7be0522eaa18808684b7b82b248515511b
https://www.mend.io/vulnerability-database/CVE-2023-23455

Severity Score

Weakness Type (CWE)

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

CWE-843

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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