CVE-2023-52557

OpenBSD 7.3 invalid l2tp message npppd crash

Description

In OpenBSD 7.3 before errata 016, npppd(8) could crash by a l2tp message which has an AVP (Attribute-Value Pair) with wrong length.

Categories

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.07%
Affected: OpenBSD OpenBSD
Published at:
Updated at:

References

Link Tags
https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/016_npppd.patch.sig
https://github.com/openbsd/src/commit/abf3a29384c582c807a621e7fc6e7c68d0cafe9b

Frequently Asked Questions

What is the severity of CVE-2023-52557?
CVE-2023-52557 has been scored as a high severity vulnerability.
How to fix CVE-2023-52557?
To fix CVE-2023-52557, 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-2023-52557 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-52557 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.
What software or system is affected by CVE-2023-52557?
CVE-2023-52557 affects OpenBSD OpenBSD.
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