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Bug 205022 - Sendmail 8.13.7-2: CVE-2006-4434: remote DOS vulnerability
Sendmail 8.13.7-2: CVE-2006-4434: remote DOS vulnerability
Product: Fedora
Classification: Fedora
Component: sendmail (Show other bugs)
All Linux
medium Severity urgent
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Assigned To: Thomas Woerner
David Lawrence
Depends On:
  Show dependency treegraph
Reported: 2006-09-02 11:16 EDT by Gilbert Sebenste
Modified: 2007-11-30 17:11 EST (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2007-01-23 04:49:25 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Gilbert Sebenste 2006-09-02 11:16:13 EDT
Description of problem: Use-after-free vulnerability in Sendmail before 8.13.8 
allows remote attackers to cause a denial of service (crash) via a 
long "header line", which causes a previously freed variable to be referenced.

Version-Release number of selected component (if applicable): 8.13.7-2 and 

How reproducible: Always

Steps to Reproduce:
1. Use sendmail!
2. Attack using flaw
Actual results: Sendmail processes craash on DOS.

Expected results: Sendmail shouldn't do that!

Additional info: Patch is available at www.sendmail.org.
8.13.8-1 is in Rawhide now, but we need an update for FC4/FC5.
Comment 1 Florian La Roche 2007-01-23 04:49:25 EST
Update is out, so closing this.


Florian La Roche

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