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Bug 150040 - net-analyzer/snort: stream4 cache_clean_percent Max Number of Sessions DoS
Summary: net-analyzer/snort: stream4 cache_clean_percent Max Number of Sessions DoS
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Security
URL: http://marc.theaimsgroup.com/?l=snort...
Whiteboard: C3 [ebuild?] vorlon
Keywords:
Depends on:
Blocks:
 
Reported: 2006-10-04 03:19 UTC by Matthias Geerdsen (RETIRED)
Modified: 2007-03-07 13:39 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description Matthias Geerdsen (RETIRED) gentoo-dev 2006-10-04 03:19:37 UTC
Snort Advisory
Date: 2006-09-27

Sourcefire is aware of an issue in Snort that can produce segmentation 
faults in certain circumstances.  This issue occurs when Snort is 
handling a large number of sessions and the configuration item 
cache_clean_percent is set to anything other than 0.

Open-source Snort users who have not manually modified the default 
configuration for stream4 are unaffected by this issue.  Only users who 
have added the cache_clean_percent option to their stream4 configuration 
are affected. They should change their configuration to use the 
parameter cache_clean_sessions instead.

The latest CVS source downloads for the Snort 2.6.1, 2.6.0, and 2.4 
branches now contain a fix for this issue.  The next version of Snort 
will contain this fix. Thanks to Eric Hines from Applied Watch for 
reporting the issue.

_________________

http://www.osvdb.org/29280
http://cvs.snort.org/viewcvs.cgi/snort/ChangeLog.diff?r1=1.404.2.60&r2=1.404.2.61
Comment 1 Matthias Geerdsen (RETIRED) gentoo-dev 2006-10-04 03:20:45 UTC
netmon, pls provide an updated ebuild
Comment 2 Benjamin Smee (strerror) (RETIRED) gentoo-dev 2006-10-12 05:01:06 UTC
non trivial. The 2.6 branch is package masked because it has real issues (for example i can't even get it to compile), i tried a simple rev bump but no go for compilation. 

The 2.4 branch is not continued afaict and I'm not overly keen to put a cvs tarball up instead. Is this something that we can just alert our uses to with an ewarn until there is either a new 2.4 branch out or we have unmasked a suitable patched / working 2.6?
Comment 3 Matthias Geerdsen (RETIRED) gentoo-dev 2006-11-06 04:05:29 UTC
oops, this got unnoticed it seems

are there any news Benjamin? otherwise I would say put an ewarn into the ebuild for now

What about extracting the needed patches from CVS?
Comment 4 Matthias Geerdsen (RETIRED) gentoo-dev 2006-11-23 13:44:54 UTC
any news?
Comment 5 Matthias Geerdsen (RETIRED) gentoo-dev 2006-12-05 11:56:19 UTC
strerror, any updates on this one?
Comment 6 Matthias Geerdsen (RETIRED) gentoo-dev 2007-03-07 13:20:56 UTC
looks like we forgot this bug

I suppose this is fixed in the currently stable ebuilds? Can someone confirm?
Comment 7 Stefan Cornelius (RETIRED) gentoo-dev 2007-03-07 13:39:36 UTC
glsa-200703-01 recommends to update to 2.6.1.3 and I can at least confirm that the fix appears in the changelog, cant be bothered to check the source.

so it should be ok to close this one as fixed