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Q1 Factsheets released:

http://secunia.com/resources/factsheets/2011_vendor/


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TITLE:
rsyslog Memory Leak Denial of Service Weaknesses

SECUNIA ADVISORY ID:
SA44053

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/44053/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=44053

RELEASE DATE:
2011-04-07

DISCUSS ADVISORY:
http://secunia.com/advisories/44053/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/44053/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=44053

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Some weaknesses have been reported in rsyslog, which can be exploited
by malicious people to cause a DoS (Denial of Service).

1) A memory leak error related to multiple rulesets when processing
messages that belong to more than one ruleset can be exploited to
cause a DoS by e.g. exhausting all available memory.

2) A memory leak error related to the non-firehose processing mode
can be exploited to cause a DoS by e.g. exhausting all available
memory.

The weaknesses are reported in versions prior to 5.6.4.

SOLUTION:
Update to version 5.6.4 or later.

Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

PROVIDED AND/OR DISCOVERED BY:
1) Reported by the vendor
2) Chris Good

ORIGINAL ADVISORY:
http://www.rsyslog.com/changelog-for-5-6-4-v5-stable/
http://bugzilla.adiscon.com/show_bug.cgi?id=218
http://bugzilla.adiscon.com/show_bug.cgi?id=225
http://bugzilla.adiscon.com/show_bug.cgi?id=226

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
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