CVE-2002-0083

Name: CVE-2002-0083
Creator: NVD / NIST
Published: 2002-03-15T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 14.80%

Last modified Jun 16, 2026

CVE-2002-0083 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Off-by-one error in the channel code of OpenSSH 2.0 through 3.0.2 allows local users or remote malicious servers to gain privileges.. EPSS estimates a 14.80% chance of exploitation in the next 30 days.

Description

Off-by-one error in the channel code of OpenSSH 2.0 through 3.0.2 allows local users or remote malicious servers to gain privileges.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

14.80%

96.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-193

Affected Software

Vendor	Product	Versions
Immunix	Immunix	7.0
Mandrakesoft	Mandrake Single Network Firewall	7.2
Openbsd	Openssh	>= 2.0, < 3.1
Openpkg	Openpkg	1.0
Conectiva	Linux	5.0
Conectiva	Linux	5.1
Conectiva	Linux	6.0
Conectiva	Linux	7.0
Conectiva	Linux	ecommerce
Conectiva	Linux	graficas
Engardelinux	Secure Linux	1.0.1
Mandrakesoft	Mandrake Linux	7.1
Mandrakesoft	Mandrake Linux	7.2
Mandrakesoft	Mandrake Linux	8.0
Mandrakesoft	Mandrake Linux	8.1
Mandrakesoft	Mandrake Linux Corporate Server	1.0.1
Redhat	Linux	7.0
Redhat	Linux	7.1
Redhat	Linux	7.2
Suse	Suse Linux	6.4
Suse	Suse Linux	7.0
Suse	Suse Linux	7.1
Suse	Suse Linux	7.2
Suse	Suse Linux	7.3
Trustix	Secure Linux	1.1
Trustix	Secure Linux	1.2
Trustix	Secure Linux	1.5

References

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:13.openssh.ascBroken Link
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2002-004.txt.ascBroken Link
ftp://stage.caldera.com/pub/security/openserver/CSSA-2002-SCO.10/CSSA-2002-SCO.10.txtBroken Link
ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.11/CSSA-2002-SCO.11.txtBroken Link
http://archives.neohapsis.com/archives/bugtraq/2002-03/0108.htmlBroken Link
http://archives.neohapsis.com/archives/vulnwatch/2002-q1/0060.htmlBroken Link
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000467Broken Link
http://marc.info/?l=bugtraq&m=101552065005254&w=2Mailing List
http://marc.info/?l=bugtraq&m=101553908201861&w=2Mailing List
http://marc.info/?l=bugtraq&m=101561384821761&w=2Mailing List
http://marc.info/?l=bugtraq&m=101586991827622&w=2Mailing List, Patch
http://online.securityfocus.com/advisories/3960Broken Link, Third Party Advisory, VDB Entry
http://online.securityfocus.com/archive/1/264657Broken Link, Third Party Advisory, VDB Entry
http://www.calderasystems.com/support/security/advisories/CSSA-2002-012.0.txtBroken Link
http://www.debian.org/security/2002/dsa-119Broken Link, Vendor Advisory
http://www.iss.net/security_center/static/8383.phpBroken Link
http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-019.phpBroken Link
http://www.linuxsecurity.com/advisories/other_advisory-1937.htmlBroken Link, Patch, Vendor Advisory
http://www.novell.com/linux/security/advisories/2002_009_openssh_txt.htmlBroken Link
http://www.openbsd.org/advisories/ssh_channelalloc.txtVendor Advisory
http://www.osvdb.org/730Broken Link
http://www.redhat.com/support/errata/RHSA-2002-043.htmlBroken Link
http://www.securityfocus.com/bid/4241Broken Link, Third Party Advisory, VDB Entry
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:13.openssh.ascBroken Link
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2002-004.txt.ascBroken Link
ftp://stage.caldera.com/pub/security/openserver/CSSA-2002-SCO.10/CSSA-2002-SCO.10.txtBroken Link
ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.11/CSSA-2002-SCO.11.txtBroken Link
http://archives.neohapsis.com/archives/bugtraq/2002-03/0108.htmlBroken Link
http://archives.neohapsis.com/archives/vulnwatch/2002-q1/0060.htmlBroken Link
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000467Broken Link
http://marc.info/?l=bugtraq&m=101552065005254&w=2Mailing List
http://marc.info/?l=bugtraq&m=101553908201861&w=2Mailing List
http://marc.info/?l=bugtraq&m=101561384821761&w=2Mailing List
http://marc.info/?l=bugtraq&m=101586991827622&w=2Mailing List, Patch
http://online.securityfocus.com/advisories/3960Broken Link, Third Party Advisory, VDB Entry
http://online.securityfocus.com/archive/1/264657Broken Link, Third Party Advisory, VDB Entry
http://www.calderasystems.com/support/security/advisories/CSSA-2002-012.0.txtBroken Link
http://www.debian.org/security/2002/dsa-119Broken Link, Vendor Advisory
http://www.iss.net/security_center/static/8383.phpBroken Link
http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-019.phpBroken Link
http://www.linuxsecurity.com/advisories/other_advisory-1937.htmlBroken Link, Patch, Vendor Advisory
http://www.novell.com/linux/security/advisories/2002_009_openssh_txt.htmlBroken Link
http://www.openbsd.org/advisories/ssh_channelalloc.txtVendor Advisory
http://www.osvdb.org/730Broken Link
http://www.redhat.com/support/errata/RHSA-2002-043.htmlBroken Link
http://www.securityfocus.com/bid/4241Broken Link, Third Party Advisory, VDB Entry

Timeline

Published: Mar 15, 2002
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2002-0083?

Off-by-one error in the channel code of OpenSSH 2.0 through 3.0.2 allows local users or remote malicious servers to gain privileges.

How severe is CVE-2002-0083?

CVE-2002-0083 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 14.80% probability of exploitation in the next 30 days.

How do I fix CVE-2002-0083?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2002-0083?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST