VulnerabilityAnalyzed
CVE-2023-52557
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.
HIGH 7.5EPSS 0.56%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.56% probability · 45th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-131, CWE-805
- Affected
- openbsd/openbsd
- Source
- 9119a7d8-5eab-497f-8521-727c672e3725
References
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/016_npppd.patch.sigPatch
- https://github.com/openbsd/src/commit/abf3a29384c582c807a621e7fc6e7c68d0cafe9bPatch
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/016_npppd.patch.sigPatch
- https://github.com/openbsd/src/commit/abf3a29384c582c807a621e7fc6e7c68d0cafe9bPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.