CVE-2006-3121 EXPLOIT
5.0
MEDIUM · CVSS 2.0 · EPSS 13.6% (pctl 96)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 5.0 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| EPSS | 13.59% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-399 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2006-08-17 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| high availability linux project | heartbeat |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux-HA Heartbeat 2.0.6 - Remote Denial of Service | 2006-08-13 |
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
- http://www.vupen.com/english/advisories/2006/3288
- https://exchange.xforce.ibmcloud.com/vulnerabilities/28396
- 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
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