CVE catalog
CVE-2016-5361
libreswan: CVE-2016-5361
- Severity
- High · CVSS 7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.72% · Oct 25, 2026
programs/pluto/ikev1.c in libreswan before 3.17 retransmits in initial-responder states, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed UDP packet. NOTE: the original behavior complies with the IKEv1 protocol, but has a required security update from the libreswan vendor; as of 2016-06-10, it is expected that several other IKEv1 implementations will have vendor-required security updates, with separate CVE IDs assigned to each.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libreswan | sid | 5.2-2.5 | not affected |
| Debian | libreswan | forky | 5.2-2.5 | not affected |
| Debian | libreswan | trixie | 5.2-2.2 | not affected |
| Debian | libreswan | bookworm | 4.10-2+deb12u1 | not affected |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libreswan | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | libreswan | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | libreswan | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | libreswan | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libreswan]Not affected
Details (2)
4.10-2+deb12u1· amd64 · bookwormNot affected
dsa · libreswan · debian · bookworm
4.10-2+deb12u1· arm64 · bookwormNot affected
dsa · libreswan · debian · bookworm
Observed: