CVE-2011-3380
Openswan 2.6.29 through 2.6.35 allows remote attackers to cause a denial of service (NULL pointer...
Openswan 2.6.29 through 2.6.35 allows remote attackers to cause a denial of service (NULL pointer dereference and pluto IKE daemon crash) via an ISAKMP message with an invalid KEY_LENGTH attribute, which is not properly handled by the error handling function.
Exploit likelihood
What each source reports
NVD Score used
Openswan 2.6.29 through 2.6.35 allows remote attackers to cause a denial of service (NULL pointer dereference and pluto IKE daemon crash) via an ISAKMP message with an invalid KEY_LENGTH attribute, which is not properly handled by the error handling function.
- Record
CVE-2011-3380- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
Openswan 2.6.29 through 2.6.35 allows remote attackers to cause a denial of service (NULL pointer dereference and pluto IKE daemon crash) via an ISAKMP message with an invalid KEY_LENGTH attribute, which is not properly handled by the error handling function.
- Record
CVE-2011-3380- Updated
- 2026-11-02
EUVDEUVD-2011-3343 No score
Openswan 2.6.29 through 2.6.35 allows remote attackers to cause a denial of service (NULL pointer dereference and pluto IKE daemon crash) via an ISAKMP message with an invalid KEY_LENGTH attribute, which is not properly handled by the error handling function.
- Record
EUVD-2011-3343- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-57qx-7wcp-85w9 No score
Openswan 2.6.29 through 2.6.35 allows remote attackers to cause a denial of service (NULL pointer...
Openswan 2.6.29 through 2.6.35 allows remote attackers to cause a denial of service (NULL pointer dereference and pluto IKE daemon crash) via an ISAKMP message with an invalid KEY_LENGTH attribute, which is not properly handled by the error handling function.
- Record
GHSA-57qx-7wcp-85w9- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
openswanRed Hat:enterprise_linux:6::server |
before 0:2.6.32-4.el6_1.2 | 0:2.6.32-4.el6_1.2 |
openswan-debuginfoRed Hat:enterprise_linux:6::server |
before 0:2.6.32-4.el6_1.2 | 0:2.6.32-4.el6_1.2 |
openswan-docRed Hat:enterprise_linux:6::server |
before 0:2.6.32-4.el6_1.2 | 0:2.6.32-4.el6_1.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-3380 is a medium vulnerability (CVSS 5.0) in Xelerance Openswan, published November 17, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.27%, the 83rd percentile. Fixed in openswan 0:2.6.32-4.el6_1.2.