Bug 137881 - CAN-2004-1002 Integer underflow in ppp
CAN-2004-1002 Integer underflow in ppp
Status: CLOSED ERRATA
Product: Fedora
Classification: Fedora
Component: ppp (Show other bugs)
2
All Linux
medium Severity medium
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Assigned To: Thomas Woerner
: Security
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2004-11-02 10:11 EST by Josh Bressers
Modified: 2007-11-30 17:10 EST (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2004-11-03 05:01:45 EST
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Description Josh Bressers 2004-11-02 10:11:39 EST
Improper verification of header fields lets an attacker make the pppd
server access memory it isn't allowed to, and crash the server.  There
is no possibility of code execution, as there is no data being copied,
just a pointer dereferenced.

More information here.
       
http://www.securityfocus.com/archive/1/379450/2004-10-23/2004-10-29/0

This should also affect FC3
Comment 1 Thomas Woerner 2004-11-03 05:01:45 EST
Fixed in updates in rpm ppp-2.4.2-5.2.FC2.
Comment 2 Mark J. Cox (Product Security) 2004-11-03 07:46:47 EST
This issue is only a DoS on the connection the attacker is using.

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