Bug 769822 - (CVE-2011-4623) CVE-2011-4623 rsyslog: DoS due integer signedness error while extending rsyslog counted string buffer
CVE-2011-4623 rsyslog: DoS due integer signedness error while extending rsysl...
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
impact=moderate,public=20110209,repor...
: Security
Depends On: 769025
Blocks: 784298
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Reported: 2011-12-22 07:09 EST by Jan Lieskovsky
Modified: 2015-08-19 05:14 EDT (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-06-21 00:01:03 EDT
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Description Jan Lieskovsky 2011-12-22 07:09:52 EST
An integer signedness error, leading to heap based buffer overflow was found in the way the imfile module of rsyslog, an enhanced system logging and kernel message trapping daemon, processed text files larger than 64 KB. When the imfile rsyslog module was enabled, a local attacker could use this flaw to cause denial of service (rsyslogd daemon hang) via specially-crafted message, to be logged.

Upstream bug report:
[1] http://bugzilla.adiscon.com/show_bug.cgi?id=221

Upstream patch:
[2] http://git.adiscon.com/?p=rsyslog.git;a=commit;h=6bad782f154b7f838c7371bf99c13f6dc4ec4101
Comment 1 Jan Lieskovsky 2011-12-22 07:13:12 EST
This issue did NOT affect the version of rsyslog package, as shipped with Red Hat Enterprise Linux 5.

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This issue affects the version of the rsyslog package, as shipped with Red Hat Enterprise Linux 6.

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This issue did NOT affect the versions of the rsyslog package, as shipped with Fedora release of 15 and 16.
Comment 2 Jan Lieskovsky 2011-12-22 07:22:40 EST
CVE request:
[3] http://www.openwall.com/lists/oss-security/2011/12/22/1
Comment 3 Kurt Seifried 2011-12-22 10:58:13 EST
Please use CVE-2011-4623 for this issue as per http://www.openwall.com/lists/oss-security/2011/12/22/2
Comment 5 errata-xmlrpc 2012-06-20 02:58:52 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:0796 https://rhn.redhat.com/errata/RHSA-2012-0796.html
Comment 7 Huzaifa S. Sidhpurwala 2012-06-21 00:01:03 EDT
Statement:

(none)

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