CVE-2013-0176 The publickey_from_privatekey function in libssh before 0.5.4, when no algorithm is matched during negotiations, allows remote attackers to cause a denial of service (NULL pointer dereference and cras...
MediumCVSS 4.3
EPSS 3.0%
- Published
- Updated
- Exploit status
- No public exploit known
Description
The publickey_from_privatekey function in libssh before 0.5.4, when no algorithm is matched during negotiations, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a "Client: Diffie-Hellman Key Exchange Init" packet.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/libssh(Debian:12) | < 0.5.4-1 | 0.5.4-1 |
| debian/libssh(Debian:13) | < 0.5.4-1 | 0.5.4-1 |
| debian/libssh(Debian:14) | < 0.5.4-1 | 0.5.4-1 |
| libssh | <= 0.5.3 | No fix listed |
| libssh | = 0.4.7 | No fix listed |
| libssh | = 0.4.8 | No fix listed |
| libssh | = 0.5.0 | No fix listed |
| libssh | = 0.5.0-rc1 | No fix listed |
| libssh | = 0.5.1 | No fix listed |
| libssh | = 0.5.2 | No fix listed |
References
- Debian Security Tracker CVE-2013-0176 vendor-advisory
- FEDORA-2013-1422 vendor-advisory
- FEDORA-2013-1407 vendor-advisory
- 51982 third-party-advisory vendor-advisory
- www.libssh.org patch vendor-advisory
- USN-1707-1 vendor-advisory
- libssh-publickeyfromprivatekey-dos(81595) vdb-entry
- bugs.debian.org issue-tracking