Bug 530164 - (CVE-2009-3384) CVE-2009-3384 Firefox integer underflow in FTP directory list parser
CVE-2009-3384 Firefox integer underflow in FTP directory list parser
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
urgent Severity urgent
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Assigned To: Red Hat Product Security
: Security
Depends On:
Blocks: 733423
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Reported: 2009-10-21 14:37 EDT by Josh Bressers
Modified: 2016-03-04 06:09 EST (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2011-10-03 11:18:18 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Josh Bressers 2009-10-21 14:37:38 EDT
Security researcher Michal Zalewski reported that the parser for FTP
directory listings was improperly checking for the end of a string buffer,
resulting in an integer underflow of a counter variable. This counter would
later be used as an array index and could result in the execution of an
arbitrary memory location. An attacker could potentially use this
vulnerability to crash a victim's browser and run arbitrary code on their
Comment 2 Josh Bressers 2010-12-16 10:41:17 EST
The Mozilla bug is here:
Comment 3 Huzaifa S. Sidhpurwala 2011-08-17 02:38:28 EDT
Here is the relevant mozilla patch:


This was fixed in:

Patch: mozilla-515583-x.patch
* Mon Oct 12 2009 Martin Stransky <stransky@redhat.com> - 1.0.9-50.el4
- Added fixes from
Errata: RHSA-2009:1531

Comment 4 Josh Bressers 2011-10-03 09:26:27 EDT
The upstream bug is now public. I'm opening this up.
Comment 5 Josh Bressers 2011-10-03 11:18:18 EDT
We fixed this bug in RHSA-2009:1530, RHSA-2009:1531, RHSA-2010:0153, RHSA-2010:0154

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