HIGH
libreswan: IKEv2 bogus proposal lacking DH transform causes pluto daemon restart
Published Jun 13, 2017
7.5
HIGHCVSS 3.0
EPSS 3.01%
Description
libreswan before 3.18 allows remote attackers to cause a denial of service (NULL pointer dereference and pluto daemon restart).
Affected products
No data.
Configuration 2
OR
- 23
- 24
No data.
Red Hat Enterprise Linux 6
libreswan
Not affected
Red Hat Enterprise Linux 7
libreswan
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libreswan | Not affected | n/a |
| Red Hat Enterprise Linux 7 | libreswan | Not affected | n/a |
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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
1 other source (Red Hat) ▾
5.3 MEDIUM Red Hat
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
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.
3.01% 0.03013
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03013
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.01% (0.03013) | 86.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.96% (0.02956) | 85.35th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.89% (0.00890) | 73.41th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.73% (0.02725) | 76.51th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.89% (0.00890) | 73.89th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.71% (0.00712) | 81.13th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.71% (0.00712) | 79.86th | v3 (v2023.03.01) |
| May 8, 2023 | 0.71% (0.00712) | 77.56th | v3 (v2023.03.01) |
| Mar 29, 2023 | 0.50% (0.00504) | 72.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.71% (0.00714) | 77.44th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (7)
- https://access.redhat.com/security/cve/CVE-2016-5391 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1356183 x_refsource_CONFIRMIssue Tracking
- https://libreswan.org/security/CVE-2016-5391/CVE-2016-5391.txt x_refsource_CONFIRMPatchVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/65R6OA5AY7K2UBQUDOLOS5Y3SCULQI6I/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UKMS7R4TG6LTAGEBOWVUXF6LAWQXLNXV/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2016-5391
- https://www.cve.org/CVERecord?id=CVE-2016-5391
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2016-5391 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1356183 | x_refsource_CONFIRMIssue Tracking | |
| https://libreswan.org/security/CVE-2016-5391/CVE-2016-5391.txt | x_refsource_CONFIRMPatchVendor Advisory | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/65R6OA5AY7K2UBQUDOLOS5Y3SCULQI6I/ | vendor-advisoryx_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UKMS7R4TG6LTAGEBOWVUXF6LAWQXLNXV/ | vendor-advisoryx_refsource_FEDORA | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-5391 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-5391 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jun 13, 2017
Updated Aug 6, 2024
Reserved Jun 10, 2016
Link CVE-2016-5391
CISA Vulnrichment
Updated n/a