CVE-2013-0176
medium
CVSS v3
—
CVSS v4 NEW
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VIR risk
4.3
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 0.5.4-1 |
| debian | bullseye | fixed | 0.5.4-1 |
| debian | forky | fixed | 0.5.4-1 |
| debian | sid | fixed | 0.5.4-1 |
| debian | trixie | fixed | 0.5.4-1 |
References
- https://www.suse.com/security/cve/CVE-2013-0176.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098065.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098094.html
- http://secunia.com/advisories/51982
- http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/
- http://www.ubuntu.com/usn/USN-1707-1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/81595
- https://security-tracker.debian.org/tracker/CVE-2013-0176
CWEs
CWE-399
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.