Integer overflow in OpenBSD OpenSSH
CVE-2002-0639
Integer overflow in sshd in OpenSSH 2.9.9 through 3.3 allows remote attackers to execute arbitrary code during challenge response authentication (ChallengeResponseAuthentication) when OpenSSH is using SKEY or BSD_AUTH authentication.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.183 (97.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.183 · newest: 0.183 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.debian.org/security/2002/dsa-134 (vendor-advisory, Broken Link)
- www.iss.net/security_center/static/9169.php (vdb-entry, Broken Link)
- archives.neohapsis.com/archives/bugtraq/2002-06/0335.html (mailing-list, Broken Link)
- marc.info/ (mailing-list, Exploit, Mailing List)
- www.osvdb.org/6245 (vdb-entry, Broken Link)
- www.cert.org/advisories/CA-2002-18.html (US Government Resource, Third Party Advisory, third-party-advisory)
- marc.info/ (mailing-list, Exploit, Mailing List)
- www.securityfocus.com/bid/5093 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- www.linuxsecurity.com/advisories/other_advisory-2177.html (vendor-advisory, Broken Link)
- www.kb.cert.org/vuls/id/369347 (US Government Resource, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2002-0639?
- CVE-2002-0639 is a critical-severity vulnerability in OpenBSD OpenSSH, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2002-07-03.
- How severe is CVE-2002-0639?
- Critical severity. CVSS v3 base score is 9.8 out of 10.