CVE-2002-0640 describes a critical buffer overflow vulnerability in OpenSSH versions 2.3.1 through 3.3, specifically impacting sshd on OpenBSD systems configured for PAM interactive keyboard authentication. This flaw allows unauthenticated remote attackers to execute arbitrary code by sending an excessive number of responses during challenge-response authentication. With a CVSS score of 10.0, this vulnerability is highly severe, requiring no authentication or complex attack vectors, and leading to complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, exploit code is publicly available on ExploitDB, and the vulnerability has garnered significant community discussion and media coverage, indicating its historical importance and potential for exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.2.2CPE matchmatch criteria | cpe:2.3:a:openbsd:openssh:1.2.2:*:*:*:*:*:*:* | ||
1.2.3CPE matchmatch criteria | cpe:2.3:a:openbsd:openssh:1.2.3:*:*:*:*:*:*:* | ||
2.1CPE matchmatch criteria | cpe:2.3:a:openbsd:openssh:2.1:*:*:*:*:*:*:* | ||
2.1.1CPE matchmatch criteria | cpe:2.3:a:openbsd:openssh:2.1.1:*:*:*:*:*:*:* | ||
2.2CPE matchmatch criteria | cpe:2.3:a:openbsd:openssh:2.2:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.