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[gentoo-announce] GLSA: OpenSSH
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Joined: 08 Apr 2002
Posts: 661
Location: San Francisco

PostPosted: Thu Jun 27, 2002 2:35 am    Post subject: [gentoo-announce] GLSA: OpenSSH Reply with quote

Seemant Kulleen wrote:


This bug can be exploited remotely if ChallengeResponseAuthentication
is enabled in sshd_config, allowing attackers to gain superuser access.


A vulnerability exists within the "challenge-response" authentication
mechanism in the OpenSSH daemon (sshd). This mechanism, part of the SSH2
protocol, verifies a user's identity by generating a challenge and
forcing the user to supply a number of responses. It is possible for a
remote attacker to send a specially-crafted reply that triggers an
overflow. Remote attackers can therefore gain superuser priveleges.

Affected versions are: openssh-3.3_p1 and earlier.


It is recommended that all Gentoo Linux users who are running openssh
update their systems as follows.

emerge --clean rsync
emerge openssh
emerge clean

Mailing list archive:

Also, I'd like to also mention the CERT Advisory:
- Kyle Manna

Please, please SEARCH before posting.

There are three kinds of people in the world: those who can count, and those who can't.
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