CVE-2013-0176 describes a NULL pointer dereference vulnerability in the publickey_from_privatekey function of libssh versions prior to 0.5.4. This flaw allows remote attackers to cause a denial of service (crash) by sending a malformed "Client: Diffie-Hellman Key Exchange Init" packet when no algorithm is matched during negotiation. The vulnerability has a CVSS v2 score of 4.3 (Medium), indicating a network-based attack with medium complexity leading to partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.5.3CPE matchmatch criteria | cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:* | ||
0.4.7CPE matchmatch criteria | cpe:2.3:a:libssh:libssh:0.4.7:*:*:*:*:*:*:* | ||
0.4.8CPE matchmatch criteria | cpe:2.3:a:libssh:libssh:0.4.8:*:*:*:*:*:*:* | ||
0.5.0CPE matchmatch criteria | cpe:2.3:a:libssh:libssh:0.5.0:*:*:*:*:*:*:* | ||
0.5.0CPE matchmatch criteria | cpe:2.3:a:libssh:libssh:0.5.0:rc1:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:N/I:N/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.