CVE-2006-3121

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 13.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2006-08-17 · updated 2026-06-16
Weakness: CWE-399

Description

The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability Linux before 1.2.5, and 2.0 before 2.0.7, allows remote attackers to cause a denial of service (crash) via the length parameter in a heartbeat message.

Affected products

High Availability Linux Project Heartbeat: 1.2.3, 1.2.4, 2.0.1, 2.0.2, 2.0.3, 2.0.4 (+2)

References

http://secunia.com/advisories/21505
http://secunia.com/advisories/21511
http://secunia.com/advisories/21518
http://secunia.com/advisories/21521
http://secunia.com/advisories/21629
http://security.gentoo.org/glsa/glsa-200608-23.xml
http://www.debian.org/security/2006/dsa-1151
http://www.linux-ha.org/SecurityIssues
http://www.linux-ha.org/_cache/SecurityIssues__sec03.txt
http://www.mandriva.com/security/advisories?name=MDKSA-2006:142
http://www.securityfocus.com/bid/19516
http://www.ubuntu.com/usn/usn-335-1

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