strongswan: denial of service when handling IKEv1 fragmentation payloads
Published Nov 2, 2013
5.0
MEDIUMCVSS 2.0
EPSS 1.87%
Description
strongSwan 5.0.2 through 5.1.0 allows remote attackers to cause a denial of service (NULL pointer dereference and charon daemon crash) via a crafted IKEv1 fragmentation packet.
Affected products
No data.
- 5.0.2
- 5.0.3
- 5.0.4
- 5.1.0
No data.
Red Hat Enterprise Linux 5
openswan
Not affected
Red Hat Enterprise Linux 6
openswan
Not affected
Red Hat Enterprise Linux 7
libreswan
Not affected
Red Hat Enterprise Linux 7
openswan
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | openswan | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openswan | Not affected | n/a |
| Red Hat Enterprise Linux 7 | libreswan | Not affected | n/a |
| Red Hat Enterprise Linux 7 | openswan | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not Vulnerable. This issue does not affect the version of openswan as shipped with Red Hat Enterprise Linux 5 and 6.
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.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.87% (0.01868) | 78.56th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.87% (0.01868) | 76.52th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.44% (0.00444) | 61.28th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.20% (0.00197) | 58.57th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.17% (0.00173) | 53.80th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.16% (0.00159) | 51.42th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.14% (0.00144) | 49.01th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.27% (0.00269) | 62.62th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
No CWE recorded.
References (6)
- http://strongswan.org/blog/2013/11/01/strongswan-denial-of-service-vulnerability-(cve-2013-6076).html
- http://www.strongswan.org/blog/2013/11/01/strongswan-denial-of-service-vulnerability-%28cve-2013-6076%29.html x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2013-6076 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1026152 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2013-6076
- https://www.cve.org/CVERecord?id=CVE-2013-6076
Change history (0)
No recorded changes yet.