CVE-2023-23454
- State
- Published
- Severity
- 5.5 Medium
- Published
- Jan 12, 2023
- Updated
- Oct 14, 2026
- Reserved
- Jan 12, 2023
Description
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).
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://www.openwall.com/lists/oss-security/2023/01/10/1
- https://www.openwall.com/lists/oss-security/2023/01/10/4
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12
- DSA-5324vendor-advisory
- [debian-lts-announce] 20230302 [SECURITY] [DLA 3349-1] linux-5.10 security updatemailing-list
- [debian-lts-announce] 20230503 [SECURITY] [DLA 3403-1] linux security updatemailing-list
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://cert-portal.siemens.com/productcert/html/ssa-806742.html
- https://cert-portal.siemens.com/productcert/html/ssa-769027.html
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