CVE-2011-4623

Publication date 23 December 2011

Last updated 24 July 2024

Ubuntu priority

Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6, 5.x before 5.7.4, and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file, which triggers a heap-based buffer overflow.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
rsyslog	11.10 oneiric	Not affected
	11.04 natty	Fixed 4.6.4-2ubuntu4.2
	10.10 maverick	Not affected
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Not affected

Notes

tyhicks

The imfile module is built in Lucid and newer, but is not loaded in the default rsyslog config file.

jdstrand

introduced with d2d54013aebb756169182ed8716b142d27134a70 (part of 4.5.0)

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
rsyslog	Upstream: http://git.adiscon.com/?p=rsyslog.git;a=commit;h=6bad782f154b7f838c7371bf99c13f6dc4ec4101

References

Related Ubuntu Security Notices (USN)