MEDIUM
strongSwan 4.3.5 through 5.0.3, when using the OpenSSL plugin for ECDSA signature verification, allows remote attackers to authenticate as other users via an invalid signature
Published May 2, 2013
4.9
MEDIUMCVSS 2.0
EPSS 1.58%
Description
strongSwan 4.3.5 through 5.0.3, when using the OpenSSL plugin for ECDSA signature verification, allows remote attackers to authenticate as other users via an invalid signature.
Affected products
No data.
OR
- 4.3.5
- 4.3.6
- 4.3.7
- 4.4.0
- 4.4.1
- 4.5.0
- 4.5.1
- 4.5.2
- 4.5.3
- 4.6.0
- 4.6.1
- 4.6.2
- 4.6.3
- 4.6.4
- 5.0.0
- 5.0.1
- 5.0.2
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.
4.9 MEDIUM NVD
AV:N/AC:M/Au:S/C:P/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.58% 0.01585
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01585
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.58% (0.01585) | 74.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.58% (0.01585) | 72.31th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.34% (0.00345) | 54.87th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.25% (0.00246) | 65.16th | v3 (v2023.03.01) |
| Mar 22, 2024 | 0.25% (0.00246) | 63.97th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.25% (0.00252) | 64.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.25% (0.00252) | 61.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.23% (0.01232) | 67.28th | v2 (v2022.01.01) |
| Dec 23, 2022 | 1.23% (0.01232) | 66.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.23% (0.01232) | 64.85th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.23% (0.01232) | 41.02th | v2 (v2022.01.01) |
Weaknesses (1)
References (7)
- http://download.strongswan.org/patches/10_openssl_ecdsa_signature_patch/strongswan-4.3.5-5.0.3_openssl_ecdsa_signature.patch x_refsource_MISCPatch
- http://lists.opensuse.org/opensuse-updates/2013-05/msg00014.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-06/msg00010.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-06/msg00121.html vendor-advisoryx_refsource_SUSE
- http://www.debian.org/security/2013/dsa-2665 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/59580 vdb-entryx_refsource_BID
- http://www.strongswan.org/blog/2013/04/30/strongswan-5.0.4-released-%28cve-2013-2944%29.html x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| http://download.strongswan.org/patches/10_openssl_ecdsa_signature_patch/strongswan-4.3.5-5.0.3_openssl_ecdsa_signature.patch | x_refsource_MISCPatch | |
| http://lists.opensuse.org/opensuse-updates/2013-05/msg00014.html | vendor-advisoryx_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-updates/2013-06/msg00010.html | vendor-advisoryx_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-updates/2013-06/msg00121.html | vendor-advisoryx_refsource_SUSE | |
| http://www.debian.org/security/2013/dsa-2665 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/59580 | vdb-entryx_refsource_BID | |
| http://www.strongswan.org/blog/2013/04/30/strongswan-5.0.4-released-%28cve-2013-2944%29.html | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 2, 2013
Updated Aug 6, 2024
Reserved Apr 11, 2013
Link CVE-2013-2944
CISA Vulnrichment
Updated n/a