MEDIUM
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
Published Aug 17, 2006
5.0
MEDIUMCVSS 2.0
EPSS 13.59%
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
No data.
OR
- 1.2.3
- 1.2.4
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.4
- 2.0.5
- 2.0.6
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
13.59% 0.13589
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.13589
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 13.59% (0.13589) | 96.35th | v5 (v2026.06.15) |
| Sep 14, 2026 | 13.59% (0.13589) | 96.24th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.59% (0.12589) | 95.72th | v5 (v2026.06.15) |
| Dec 28, 2025 | 20.33% (0.20327) | 95.33th | v4 (v2025.03.14) |
| Jul 20, 2025 | 21.44% (0.21439) | 95.43th | v4 (v2025.03.14) |
| Mar 30, 2025 | 20.38% (0.20379) | 95.06th | v4 (v2025.03.14) |
| Mar 29, 2025 | 18.22% (0.18216) | 92.09th | v4 (v2025.03.14) |
| Mar 17, 2025 | 20.38% (0.20379) | 95.07th | v4 (v2025.03.14) |
| Dec 17, 2024 | 5.44% (0.05439) | 93.06th | v3 (v2023.03.01) |
| Dec 12, 2024 | 10.41% (0.10409) | 95.25th | v3 (v2023.03.01) |
| Jul 7, 2024 | 11.26% (0.11256) | 95.25th | v3 (v2023.03.01) |
| Apr 22, 2024 | 6.25% (0.06248) | 93.51th | v3 (v2023.03.01) |
| Feb 27, 2024 | 6.71% (0.06712) | 93.62th | v3 (v2023.03.01) |
| Jan 9, 2024 | 7.75% (0.07747) | 93.55th | v3 (v2023.03.01) |
| Nov 20, 2023 | 8.01% (0.08009) | 93.62th | v3 (v2023.03.01) |
| Jun 20, 2023 | 7.29% (0.07293) | 93.09th | v3 (v2023.03.01) |
| May 13, 2023 | 6.54% (0.06543) | 92.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.75% (0.06752) | 92.72th | v3 (v2023.03.01) |
| Mar 6, 2023 | 12.57% (0.12567) | 95.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 12.57% (0.12567) | 95.18th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.57% (0.12567) | 90.03th | v2 (v2022.01.01) |
Weaknesses (1)
References (14)
- http://secunia.com/advisories/21505 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21511 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21518 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21521 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21629 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://security.gentoo.org/glsa/glsa-200608-23.xml vendor-advisoryx_refsource_GENTOO
- http://www.debian.org/security/2006/dsa-1151 vendor-advisoryx_refsource_DEBIANPatch
- http://www.linux-ha.org/SecurityIssues x_refsource_CONFIRMPatch
- http://www.linux-ha.org/_cache/SecurityIssues__sec03.txt x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:142 vendor-advisoryx_refsource_MANDRIVA
- http://www.securityfocus.com/bid/19516 vdb-entryx_refsource_BIDPatch
- http://www.ubuntu.com/usn/usn-335-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2006/3288 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/28396 vdb-entryx_refsource_XF
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner debian
Published Aug 17, 2006
Updated Aug 7, 2024
Reserved Jun 21, 2006
Link CVE-2006-3121
CISA Vulnrichment
Updated n/a