Vulnerability Details : 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).
Vulnerability category: Denial of service
Products affected by CVE-2023-23454
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-23454
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 13 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-23454
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2023-23454
-
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-23454
-
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
[SECURITY] [DLA 3403-1] linux security update
-
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12
kernel/git/torvalds/linux.git - Linux kernel source treePatch;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
[SECURITY] [DLA 3349-1] linux-5.10 security update
-
https://www.openwall.com/lists/oss-security/2023/01/10/1
oss-security - Type Confusion in Linux KernelMailing List;Third Party Advisory
-
https://www.openwall.com/lists/oss-security/2023/01/10/4
oss-security - Re: Type Confusion in Linux KernelMailing List;Third Party Advisory
-
https://www.debian.org/security/2023/dsa-5324
Debian -- Security Information -- DSA-5324-1 linuxThird Party Advisory
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