vulnerability
Alpine Linux: CVE-2021-41991: Integer Overflow or Wraparound
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Oct 18, 2021 | Mar 26, 2024 | Dec 22, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Oct 18, 2021
Added
Mar 26, 2024
Modified
Dec 22, 2025
Description
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.
Solution
alpine-linux-upgrade-strongswan
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