Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2011-4623

2.1 · LOW

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…

Published Sep 25, 2012rsyslogCWE-189EPSS 0.42%

Overview

CVE-2011-4623 is a low-severity vulnerability affecting rsyslog rsyslog. It was published on September 25, 2012 and has a CVSS 2.0 base score of 2.1 (LOW).

This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from rsyslog. Update rsyslog to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refbugzilla.adiscon.com/show_bug.cgi?id=221Refgit.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=6bad782f154b7f838c7371bf99c13f6dc4ec4101Refrsyslog.com/changelog-for-4-6-6-v4-stable/Refrsyslog.com/changelog-for-5-7-4-v5-beta/Refrsyslog.com/changelog-for-6-1-4-devel/Refsecunia.com/advisories/45848Refsecunia.com/advisories/47698Refwww.openwall.com/lists/oss-security/2011/12/22/2Refwww.securityfocus.com/bid/51171Refwww.securitytracker.com/id?1026556

How CyberStrike helps

Frequently asked questions

What is CVE-2011-4623?

CVE-2011-4623 is a low-severity vulnerability affecting rsyslog rsyslog. It was published on September 25, 2012 and has a CVSS 2.0 base score of 2.1 (LOW).

How severe is CVE-2011-4623?

This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-4623?

Check the references section for vendor advisories and patches from rsyslog. Update rsyslog to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-4623?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-4623 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related LOW CVEs from 2011

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999