Description
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | strongswan | 5.3.0-2 | — |
| Debian 13 | strongswan | 5.3.0-2 | — |
| Debian 12 | strongswan | 5.3.0-2 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | strongswan | 5.3.5-1.1 | openSUSE-SU-2024:10579-1 |
Advisories 1
- openSUSE-SU-2024:10579-1 strongswan-5.3.5-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- FEDORA-2015-5247 vendor-advisory
- FEDORA-2015-5279 vendor-advisory
- https://www.strongswan.org/blog/2015/06/01/strongswan-vulnerability-%28cve-2015-3991%29.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1222815
- 76861 vdb-entry