CVE-2011-4623

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.

• CWE-189

• http://bugzilla.adiscon.com/show_bug.cgi?id=221
• http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=6bad782f154b7f838c7371bf99c13f6dc4ec4101
• http://rsyslog.com/changelog-for-4-6-6-v4-stable/
• http://rsyslog.com/changelog-for-5-7-4-v5-beta/
• http://rsyslog.com/changelog-for-6-1-4-devel/
• http://secunia.com/advisories/45848Vendor Advisory
• http://secunia.com/advisories/47698Vendor Advisory
• http://www.openwall.com/lists/oss-security/2011/12/22/2
• http://www.securityfocus.com/bid/51171
• http://www.securitytracker.com/id?1026556
• http://www.ubuntu.com/usn/USN-1338-1Patch, Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=769822
• http://bugzilla.adiscon.com/show_bug.cgi?id=221
• http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=6bad782f154b7f838c7371bf99c13f6dc4ec4101
• http://rsyslog.com/changelog-for-4-6-6-v4-stable/
• http://rsyslog.com/changelog-for-5-7-4-v5-beta/
• http://rsyslog.com/changelog-for-6-1-4-devel/
• http://secunia.com/advisories/45848Vendor Advisory
• http://secunia.com/advisories/47698Vendor Advisory
• http://www.openwall.com/lists/oss-security/2011/12/22/2
• http://www.securityfocus.com/bid/51171
• http://www.securitytracker.com/id?1026556
• http://www.ubuntu.com/usn/USN-1338-1Patch, Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=769822

Published

Sep 25, 2012

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2011-4617virtualenv.py in virtualenv before 1.5 allows local users to…
• CVE-2011-4618Cross-site scripting (XSS) vulnerability in advancedtext.php…
• CVE-2011-4619The Server Gated Cryptography (SGC) implementation in OpenSS…
• CVE-2011-4620Buffer overflow in the ulSetError function in util/ulError.c…
• CVE-2011-4621The Linux kernel before 2.6.37 does not properly implement a…5.5
• CVE-2011-4622The create_pit_timer function in arch/x86/kvm/i8254.c in KVM…
• CVE-2011-4624Cross-site scripting (XSS) vulnerability in facebook.php in …
• CVE-2011-4625simplesamlphp before 1.6.3 (squeeze) and before 1.8.2 (sid) …7.5
• CVE-2011-4626Cross-site Scripting (XSS) in TYPO3 before 4.3.12, 4.4.x bef…6.1
• CVE-2011-4627TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.…6.5
• CVE-2011-4628TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.…9.8
• CVE-2011-4629Cross-site Scripting (XSS) in TYPO3 before 4.3.12, 4.4.x bef…5.4