Bug 499174 - (CVE-2009-1577) CVE-2009-1577 cscope: putstring buffer overflow
CVE-2009-1577 cscope: putstring buffer overflow
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
source=bz,reported=20060422,public=20...
: Security
Depends On: 189666 499197 499198 499199
Blocks:
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Reported: 2009-05-05 10:18 EDT by Tomas Hoger
Modified: 2009-06-16 03:10 EDT (History)
4 users (show)

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Doc Type: Bug Fix
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Last Closed: 2009-06-16 02:35:07 EDT
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Description Tomas Hoger 2009-05-05 10:18:32 EDT
A stack-based buffer overflow existed in cscope's putstring function in cscope's versions prior to 15.6.  A long function or symbol name in source code file could result in cscope crash or code execution when searching the source code for any function or symbol name.

Issue was originally reported via bug #189666, it can be reproduced using memcheck/tests/match-overrun.c from valgrind source tarball.

In cscope 15.6, putstring was replaced with function fetch_string_from_dbase, which accepts target buffer size as its argument.

Upstream commit:
http://cscope.cvs.sourceforge.net/viewvc/cscope/cscope/src/find.c?view=log#rev1.19

Patch, which was used in Fedora cscope packages and is used in cscope packages in Red Hat Enterprise Linux 5:
http://cvs.fedoraproject.org/viewvc/rpms/cscope/devel/cscope-15.5-putstring-overflow.patch
Comment 3 Vincent Danen 2009-05-07 14:02:27 EDT
Common Vulnerabilities and Exposures assigned the identifier CVE-2009-1577 to this vulnerability.
Comment 4 errata-xmlrpc 2009-06-15 17:12:47 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 3

Via RHSA-2009:1101 https://rhn.redhat.com/errata/RHSA-2009-1101.html

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