CVE-2023-52557: OpenBSD 7.3 invalid l2tp message npppd crash
First published: Fri Mar 01 2024(Updated: )
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.
Credit: 9119a7d8-5eab-497f-8521-727c672e3725
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenBSD | <7.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2023-52557?
CVE-2023-52557 is considered a moderate severity vulnerability due to the potential for npppd to crash when processing malicious l2tp messages.
How do I fix CVE-2023-52557?
To fix CVE-2023-52557, apply errata 016 or update to a version of OpenBSD later than 7.3.
Which versions of OpenBSD are affected by CVE-2023-52557?
CVE-2023-52557 affects OpenBSD versions prior to errata 016 in version 7.3.
What components are impacted by CVE-2023-52557?
CVE-2023-52557 impacts the npppd component in OpenBSD, specifically related to handling l2tp messages.
Is there a workaround for CVE-2023-52557?
Currently, there are no documented workarounds for CVE-2023-52557 aside from patching or upgrading the affected software.
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