CVE-2002-0639

published 2002-07-03

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…

Priority P3 45 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	openssh	< openssh 1:3.4 (bookworm)	openssh 1:3.4 (bookworm)
openbsd	openssh	>= 0 < 1:3.4	1:3.4
openbsd	openssh	>= 0 < 1:3.4	1:3.4
openbsd	openssh	>= 0 < 1:3.4	1:3.4
openbsd	openssh	>= 0 < 1:3.4	1:3.4
openbsd	openssh	2.9.9 – 3.3	—

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 10.0 CRITICAL AV:N/AC:L/Au:N/C:C/I:C/A:C

osv 9.8 CRITICAL

vendor_debian 9.8 HIGH

vendor_redhat 9.8 CRITICAL

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-190