libreswan: crafted IKE packet causes daemon restart
Published Jul 1, 2015
5.0
MEDIUMCVSS 2.0
EPSS 2.62%
Description
libreswan 3.9 through 3.12 allows remote attackers to cause a denial of service (daemon restart) via an IKEv1 packet with (1) unassigned bits set in the IPSEC DOI value or (2) the next payload value set to ISAKMP_NEXT_SAK.
Affected products
No data.
No data.
Red Hat Enterprise Linux 7
libreswan-0:3.12-10.1.ael7b_1
Fixed · RHSA-2015:1154
Red Hat Enterprise Linux 5
openswan
Not affected
Red Hat Enterprise Linux 6
openswan
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | libreswan-0:3.12-10.1.ael7b_1 | Fixed | RHSA-2015:1154 |
| Red Hat Enterprise Linux 5 | openswan | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openswan | 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.
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.62% (0.02617) | 84.89th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.59% (0.02592) | 83.23th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.76% (0.00764) | 71.12th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.00% (0.02004) | 72.85th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.76% (0.00764) | 71.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.07% (0.01075) | 84.91th | v3 (v2023.03.01) |
| Oct 1, 2023 | 1.07% (0.01075) | 82.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.91% (0.00912) | 80.37th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.21% (0.01213) | 66.13th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.41% (0.01408) | 72.21th | 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 (9)
- http://rhn.redhat.com/errata/RHSA-2015-1154.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/75392 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2015-3204 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1223361 Issue Tracking
- https://libreswan.org/security/CVE-2015-3204/CVE-2015-3204-libreswan.patch
- https://libreswan.org/security/CVE-2015-3204/CVE-2015-3204.txt x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-3204
- https://security.gentoo.org/glsa/201603-13 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-3204
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2015-1154.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.securityfocus.com/bid/75392 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2015-3204 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1223361 | Issue Tracking | |
| https://libreswan.org/security/CVE-2015-3204/CVE-2015-3204-libreswan.patch | ||
| https://libreswan.org/security/CVE-2015-3204/CVE-2015-3204.txt | x_refsource_CONFIRMVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-3204 | ||
| https://security.gentoo.org/glsa/201603-13 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2015-3204 |
Change history (0)
No recorded changes yet.