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CVE-2006-3121
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,…
Medium5.0EPSS 13.6%
- Published
- Updated
- Reserved
- Assigned by
- debian
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 13.6% · top 3.5% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (14)
- GLSA-200608-23 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 21629 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 21511 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 21505 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 19516 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.linux-ha.org/_cache/SecurityIssues__sec03.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- 21518 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- MDKSA-2006:142 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- heartbeat-packet-dos(28396) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- DSA-1151 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://www.linux-ha.org/SecurityIssues (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2006-3288 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- USN-335-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 21521 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2006-3121)Record last updated .