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[ GLSA 200411-01 ] ppp: No denial of service vulnerability
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GLSA
Bodhisattva
Bodhisattva


Joined: 25 Feb 2003
Posts: 3827
Location: Essen, Germany

PostPosted: Mon Nov 01, 2004 5:42 pm    Post subject: [ GLSA 200411-01 ] ppp: No denial of service vulnerability Reply with quote

Gentoo Linux Security Advisory

Title: ppp: No denial of service vulnerability (GLSA 200411-01)
Severity: low
Exploitable: remote
Date: November 01, 2004
Updated: November 02, 2004
Bug(s): #69152
ID: 200411-01

Synopsis

pppd contains a bug that allows an attacker to crash his own connection, but it cannot be used to deny service to other users.

Background

ppp is a Unix implementation of the Point-to-Point Protocol.

Description

The pppd server improperly verifies header fields, potentially leading to a crash of the pppd process handling the connection. However, since a separate pppd process handles each ppp connection, this would not affect any other connection, or prevent new connections from being established.

Impact

We incorrectly thought that this bug could be exploited to deny service to all ppp users. It is not the case, this bug has no security impact whatsoever. Many thanks to Paul Mackerras from the Samba team for correcting our mistake.

Workaround

There is no need for a workaround.

Resolution

ppp users can keep their current versions.

References

Incorrect BugTraq Advisory


Last edited by GLSA on Thu Jul 20, 2006 4:17 am; edited 3 times in total
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