CVE-2002-0640 EXPLOIT
10.0
HIGH · CVSS 2.0 · EPSS 27.3% (pctl 98)
Patch early
A public exploit exists.
Description
Buffer overflow in sshd in OpenSSH 2.3.1 through 3.3 may allow remote attackers to execute arbitrary code via a large number of responses during challenge response authentication when OpenBSD is using PAM modules with interactive keyboard authentication (PAMAuthenticationViaKbdInt).
Scoring
| CVSS | 10.0 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:C/I:C/A:C |
| EPSS | 27.32% — more likely to be exploited than 98% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2002-07-03 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| openbsd | openssh |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | OpenSSH 3.x - Challenge-Response Buffer Overflow (1) | 2002-06-24 |
| exploit-db | OpenSSH 3.x - Challenge-Response Buffer Overflow (2) | 2002-06-24 |
References
- ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-030.0.txt
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000502
- http://marc.info/?l=bugtraq&m=102514371522793&w=2
- http://marc.info/?l=bugtraq&m=102514631524575&w=2
- http://marc.info/?l=bugtraq&m=102521542826833&w=2
- http://marc.info/?l=bugtraq&m=102532054613894&w=2
- http://www.cert.org/advisories/CA-2002-18.html
- http://www.debian.org/security/2002/dsa-134
- http://www.kb.cert.org/vuls/id/369347
- http://www.linuxsecurity.com/advisories/other_advisory-2177.html
- http://www.mandrakesoft.com/security/advisories?name=MDKSA-2002:040
- http://www.novell.com/linux/security/advisories/2002_024_openssh_txt.html
- http://www.openwall.com/lists/oss-security/2024/07/01/3
- http://www.osvdb.org/839
- http://www.redhat.com/support/errata/RHSA-2002-127.html
- http://www.redhat.com/support/errata/RHSA-2002-131.html
- http://www.securityfocus.com/bid/5093
- http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBUX0206-195
- ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-030.0.txt
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000502
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