CVE-2012-3291 json
Heap-based buffer overflow in OpenConnect 3.18 allows remote servers to cause a denial of service via a crafted greeting banner.
published 2012-06-07 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-3269
- cvss
- 7.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known
Summary
Heap-based buffer overflow in OpenConnect 3.18 allows remote servers to cause a denial of service via a crafted greeting banner.
Patch / fix
- openconnect Debian 14, Debian 13, Debian 12 3.18-1
debian advisories DEBIAN-CVE-2012-3291
- openconnect openSUSE Tumbleweed 7.07-1.3
opensuse advisories openSUSE-SU-2024:10553-1
Exploit prediction
2.30% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
debian.org
/security/2012/dsa-2495
vendor-advisory
-
lists.fedoraproject.org
/pipermail/package-announce/2012-May/079747.html
vendor-advisory
-
lists.opensuse.org
/opensuse-updates/2013-06/msg00186.html
vendor-advisory
- infradead.org /openconnect/changelog.html
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17242
vdb-entry, signature
- git.infradead.org /users/dwmw2/openconnect.git/commitdiff/14cae65318d3ef1f7d449e463b72b6934e82f1c2
Sources
- CVE List CVE-2012-3291
- NVD CVE-2012-3291
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.