This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2021-41991 →
DEBIAN-CVE-2021-41991
The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to f...
Original description
The description as published by the source.
The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to select a less-often-used cache entry by means of a random number generator, but this is not done correctly. Remote code execution might be a slight possibility.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
strongswan
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.4-1"}]}]
Debian:13
strongswan
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.4-1"}]}]
Debian:14
strongswan
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.4-1"}]}]
References
- advisory security-tracker.debian.org