openswan: ISAKMP DPD remote DoS
Published Apr 1, 2009
5.0
MEDIUMCVSS 2.0
EPSS 3.21%
Description
The pluto IKE daemon in Openswan and Strongswan IPsec 2.6 before 2.6.21 and 2.4 before 2.4.14, and Strongswan 4.2 before 4.2.14 and 2.8 before 2.8.9, allows remote attackers to cause a denial of service (daemon crash and restart) via a crafted (1) R_U_THERE or (2) R_U_THERE_ACK Dead Peer Detection (DPD) IPsec IKE Notification message that triggers a NULL pointer dereference related to inconsistent ISAKMP state and the lack of a phase2 state association in DPD.
Affected products
No data.
- 2.4.0
- 2.4.0a
- 2.4.1
- 2.4.2
- 2.4.3
- 2.4.4
- 2.6.0
- 2.6.1
- 2.6.2
- 2.6.3
- 2.6.4
- 2.8.0
- 2.8.1
- 2.8.2
- 2.8.3
- 2.8.4
- 2.8.5
- 2.8.6
- 2.8.7
- 2.8.8
- 4.2.0
- 4.2.1
- 4.2.2
- 4.2.3
- 4.2.4
- 4.2.5
- 4.2.6
- 4.2.7
- 4.2.8
- 4.2.9
- 4.2.10
- 4.2.11
- 4.2.12
- 4.2.13
- 2.4.0
- 2.4.1
- 2.4.2
- 2.4.3
- 2.4.4
- 2.4.5
- 2.4.9
- 2.4.10
- 2.6.03
- 2.6.04
- 2.6.05
- 2.6.06
- 2.6.07
- 2.6.08
- 2.6.09
- 2.6.10
- 2.6.11
- 2.6.12
- 2.6.13
- 2.6.14
- 2.6.15
- 2.6.16
- 2.6.17
- 2.6.18
- 2.6.19
- 2.6.20
No data.
Red Hat Enterprise Linux 5
openswan-0:2.6.14-1.el5_3.2
Fixed · RHSA-2009:0402
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | openswan-0:2.6.14-1.el5_3.2 | Fixed | RHSA-2009:0402 |
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.
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 2, 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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.21% (0.03205) | 87.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.18% (0.03178) | 86.34th | v5 (v2026.06.15) |
| Mar 30, 2025 | 10.86% (0.10861) | 92.73th | v4 (v2025.03.14) |
| Mar 29, 2025 | 15.97% (0.15968) | 91.32th | v4 (v2025.03.14) |
| Mar 19, 2025 | 10.86% (0.10861) | 92.47th | v4 (v2025.03.14) |
| Mar 17, 2025 | 6.47% (0.06471) | 90.39th | v4 (v2025.03.14) |
| Dec 17, 2024 | 39.65% (0.39654) | 97.29th | v3 (v2023.03.01) |
| Dec 12, 2024 | 84.15% (0.84153) | 98.60th | v3 (v2023.03.01) |
| Apr 14, 2024 | 83.42% (0.83423) | 98.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 90.70% (0.90695) | 98.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Feb 13, 2023 | 3.78% (0.03779) | 85.08th | v2 (v2022.01.01) |
| Feb 3, 2023 | 4.36% (0.04358) | 87.66th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (21)
- http://download.strongswan.org/CHANGES4.txt x_refsource_CONFIRMVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00010.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/34472 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/34483 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/34494 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/34546 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.debian.org/security/2009/dsa-1759 vendor-advisoryx_refsource_DEBIANPatch
- http://www.debian.org/security/2009/dsa-1760 vendor-advisoryx_refsource_DEBIANPatch
- http://www.openswan.org/CVE-2009-0790/CVE-2009-0790.txt x_refsource_CONFIRMVendor Advisory
- http://www.redhat.com/support/errata/RHSA-2009-0402.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/502270/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/34296 vdb-entryx_refsource_BIDPatch
- http://www.securitytracker.com/id?1021949 vdb-entryx_refsource_SECTRACK
- http://www.securitytracker.com/id?1021950 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2009/0886 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2009-0790 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=491895 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49523 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2009-0790
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11171 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2009-0790
Change history (0)
No recorded changes yet.