CVE-2023-23455

Description

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).

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Vendor Advisory debian.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.openwall.com/lists/oss-security/2023/01/10/1 third party advisory mailing list
https://www.openwall.com/lists/oss-security/2023/01/10/4 third party advisory mailing list
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2965c7be0522eaa18808684b7b82b248515511b patch vendor advisory
https://www.debian.org/security/2023/dsa-5324 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html mailing list
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html mailing list

Frequently Asked Questions

What is the severity of CVE-2023-23455?
CVE-2023-23455 has been scored as a medium severity vulnerability.
How to fix CVE-2023-23455?
To fix CVE-2023-23455, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-23455 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-23455 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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