#VU32854 Stack-based buffer overflow in rsyslog - CVE-2011-3200
Published: September 6, 2011 / Updated: July 29, 2020
Vulnerability identifier: #VU32854
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:A/U:Green
CVE-ID: CVE-2011-3200
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
rsyslog
rsyslog
Software vendor:
rsyslog.com
rsyslog.com
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing a long TAG in a legacy syslog message. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Update to version 4.6.8.
External links
- http://git.adiscon.com/?p=rsyslog.git;a=commit;h=1ca6cc236d1dabf1633238b873fb1c057e52f95e
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html
- http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html
- http://secunia.com/advisories/45922
- http://secunia.com/advisories/46027
- http://securitytracker.com/id?1026000
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:134
- http://www.redhat.com/support/errata/RHSA-2011-1247.html
- http://www.rsyslog.com/potential-dos-with-malformed-tag/
- http://www.securityfocus.com/bid/49413
- https://bugzilla.redhat.com/show_bug.cgi?id=727644