CVE-2021-41991
- State
- Published
- Severity
- Not scored
- Published
- Oct 18, 2021
- Updated
- Aug 4, 2024
- Reserved
- Oct 4, 2021
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://github.com/strongswan/strongswan/releases/tag/5.9.4
- https://www.strongswan.org/blog/2021/10/18/strongswan-vulnerability-%28cve-2021-41991%29.html
- DSA-4989vendor-advisory
- [debian-lts-announce] 20211019 [SECURITY] [DLA 2788-1] strongswan security updatemailing-list
- FEDORA-2021-0b37146973vendor-advisory
- FEDORA-2021-b3df83339evendor-advisory
- FEDORA-2021-95fab6a482vendor-advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-539476.pdf
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.