Linux Security
Linux Security
Linux Security

Debian: 'openssh' Unauthorized access vulnerability

Date 08 Mar 2002
2865
Posted By LinuxSecurity Advisories
Joost Pol reports that OpenSSH versions 2.0 through 3.0.2have an off-by-one bug in the channel allocation code. This vulnerabilitycan be exploited by authenticated users to gain root privilege or by amalicious server exploiting a client with this bug.

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Debian Security Advisory                                 This email address is being protected from spambots. You need JavaScript enabled to view it. 
https://www.debian.org/security/                                Michael Stone
March 7, 2002
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Package: openssh
Vulnerability: local root exploit, remote client exploit
Debian-specific: no

Joost Pol <This email address is being protected from spambots. You need JavaScript enabled to view it.> reports that OpenSSH versions 2.0 through 3.0.2
have an off-by-one bug in the channel allocation code. This vulnerability
can be exploited by authenticated users to gain root privilege or by a
malicious server exploiting a client with this bug.

Since Debian 2.2 (potato) shipped with OpenSSH (the "ssh" package)
version 1.2.3, it is not vulnerable to this exploit. No fix is required
for Debian 2.2 (potato).

The Debian unstable and testing archives do include a more recent OpenSSH
(ssh) package. If you are running these pre-release distributions you
should ensure that you are running version 3.0.2p1-8, a patched version
which was added to the unstable archive today, or a later version.

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For apt-get: deb  https://security.debian.org/ stable/updates main
For dpkg-ftp:  ftp://security.debian.org/debian-security dists/stable/updates/main
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