curl: IP address wildcard certificate validation issue in libcurl
Published Apr 15, 2014
5.8
MEDIUMCVSS 2.0
EPSS 4.37%
Description
cURL and libcurl 7.1 before 7.36.0, when using the OpenSSL, axtls, qsossl or gskit libraries for TLS, recognize a wildcard IP address in the subject's Common Name (CN) field of an X.509 certificate, which might allow man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Affected products
No data.
- 7.10.6
- 7.10.7
- 7.10.8
- 7.11.0
- 7.11.1
- 7.11.2
- 7.12.0
- 7.12.1
- 7.12.2
- 7.12.3
- 7.13.0
- 7.13.1
- 7.13.2
- 7.14.0
- 7.14.1
- 7.15.0
- 7.15.1
- 7.15.2
- 7.15.3
- 7.15.4
- 7.15.5
- 7.16.0
- 7.16.1
- 7.16.2
- 7.16.3
- 7.16.4
- 7.17.0
- 7.17.1
- 7.18.0
- 7.18.1
- 7.18.2
- 7.19.0
- 7.19.1
- 7.19.2
- 7.19.3
- 7.19.4
- 7.19.5
- 7.19.6
- 7.19.7
- 7.20.0
- 7.20.1
- 7.21.0
- 7.21.1
- 7.21.2
- 7.21.3
- 7.21.4
- 7.21.5
- 7.21.6
- 7.21.7
- 7.22.0
- 7.23.0
- 7.23.1
- 7.24.0
- 7.25.0
- 7.26.0
- 7.27.0
- 7.28.0
- 7.28.1
- 7.29.0
- 7.30.0
- 7.31.0
- 7.32.0
- 7.33.0
- 7.34.0
- 7.35.0
- 7.10.6
- 7.10.7
- 7.10.8
- 7.11.0
- 7.11.1
- 7.11.2
- 7.12.0
- 7.12.1
- 7.12.2
- 7.12.3
- 7.13.0
- 7.13.1
- 7.13.2
- 7.14.0
- 7.14.1
- 7.15.0
- 7.15.1
- 7.15.2
- 7.15.3
- 7.15.4
- 7.15.5
- 7.16.0
- 7.16.1
- 7.16.2
- 7.16.3
- 7.16.4
- 7.17.0
- 7.17.1
- 7.18.0
- 7.18.1
- 7.18.2
- 7.19.0
- 7.19.1
- 7.19.2
- 7.19.3
- 7.19.4
- 7.19.5
- 7.19.6
- 7.19.7
- 7.20.0
- 7.20.1
- 7.21.0
- 7.21.1
- 7.21.2
- 7.21.3
- 7.21.4
- 7.21.5
- 7.21.6
- 7.21.7
- 7.22.0
- 7.23.0
- 7.23.1
- 7.24.0
- 7.25.0
- 7.26.0
- 7.27.0
- 7.28.0
- 7.28.1
- 7.29.0
- 7.30.0
- 7.31.0
- 7.32.0
- 7.33.0
- 7.34.0
- 7.35.0
No data.
Red Hat Enterprise Linux 5
curl
Will not fix
Red Hat Enterprise Linux 6
curl
Not affected
Red Hat Enterprise Linux 7
curl
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | curl | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | curl | Not affected | n/a |
| Red Hat Enterprise Linux 7 | curl | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of curl as shipped with Red Hat Enterprise Linux 6 and 7 because it uses the NSS backend, not OpenSSL. It does affect Red Hat Enterprise Linux 5 which uses the OpenSSL backend. Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
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:M/Au:N/C:P/I:P/A:N
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 (46 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.37% (0.04369) | 90.96th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.62% (0.04622) | 90.48th | v5 (v2026.06.15) |
| Mar 4, 2026 | 1.20% (0.01203) | 78.65th | v4 (v2025.03.14) |
| Mar 1, 2026 | 2.88% (0.02875) | 86.09th | v4 (v2025.03.14) |
| Feb 4, 2026 | 1.20% (0.01203) | 78.56th | v4 (v2025.03.14) |
| Feb 1, 2026 | 2.88% (0.02875) | 85.98th | v4 (v2025.03.14) |
| Jan 4, 2026 | 1.20% (0.01203) | 78.48th | v4 (v2025.03.14) |
| Jan 1, 2026 | 2.88% (0.02875) | 85.93th | v4 (v2025.03.14) |
| Dec 4, 2025 | 1.20% (0.01203) | 78.32th | v4 (v2025.03.14) |
| Dec 1, 2025 | 2.88% (0.02875) | 85.88th | v4 (v2025.03.14) |
| Nov 4, 2025 | 1.20% (0.01203) | 78.27th | v4 (v2025.03.14) |
| Nov 2, 2025 | 2.88% (0.02875) | 85.83th | v4 (v2025.03.14) |
| Oct 4, 2025 | 1.20% (0.01203) | 78.23th | v4 (v2025.03.14) |
| Oct 1, 2025 | 2.88% (0.02875) | 85.82th | v4 (v2025.03.14) |
| Sep 4, 2025 | 1.20% (0.01203) | 78.16th | v4 (v2025.03.14) |
| Sep 1, 2025 | 2.88% (0.02875) | 85.84th | v4 (v2025.03.14) |
| Aug 4, 2025 | 1.20% (0.01203) | 78.10th | v4 (v2025.03.14) |
| Aug 1, 2025 | 2.88% (0.02875) | 85.85th | v4 (v2025.03.14) |
| Jul 4, 2025 | 1.20% (0.01203) | 78.03th | v4 (v2025.03.14) |
| Jul 1, 2025 | 2.88% (0.02875) | 85.75th | v4 (v2025.03.14) |
| Jun 4, 2025 | 1.20% (0.01203) | 77.94th | v4 (v2025.03.14) |
| Jun 1, 2025 | 2.88% (0.02875) | 85.68th | v4 (v2025.03.14) |
| May 4, 2025 | 1.20% (0.01203) | 77.82th | v4 (v2025.03.14) |
| May 1, 2025 | 2.88% (0.02875) | 85.58th | v4 (v2025.03.14) |
| Apr 13, 2025 | 1.20% (0.01203) | 77.17th | v4 (v2025.03.14) |
| Apr 12, 2025 | 2.88% (0.02875) | 85.13th | v4 (v2025.03.14) |
| Apr 4, 2025 | 1.20% (0.01203) | 77.14th | v4 (v2025.03.14) |
| Apr 3, 2025 | 2.88% (0.02875) | 85.09th | v4 (v2025.03.14) |
| Apr 2, 2025 | 1.20% (0.01203) | 77.11th | v4 (v2025.03.14) |
| Apr 1, 2025 | 2.88% (0.02875) | 85.08th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.20% (0.01203) | 77.05th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.50% (0.02500) | 75.56th | v4 (v2025.03.14) |
| Mar 28, 2025 | 1.20% (0.01203) | 77.05th | v4 (v2025.03.14) |
| Mar 27, 2025 | 2.88% (0.02875) | 84.59th | v4 (v2025.03.14) |
| Mar 25, 2025 | 1.20% (0.01203) | 76.94th | v4 (v2025.03.14) |
| Mar 24, 2025 | 2.88% (0.02875) | 85.03th | v4 (v2025.03.14) |
| Mar 18, 2025 | 1.20% (0.01203) | 77.56th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.88% (0.02875) | 85.36th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.19% (0.00193) | 58.25th | v3 (v2023.03.01) |
| Nov 26, 2023 | 0.19% (0.00193) | 57.08th | v3 (v2023.03.01) |
| May 10, 2023 | 0.22% (0.00225) | 59.31th | v3 (v2023.03.01) |
| Mar 23, 2023 | 0.29% (0.00286) | 63.85th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.41% (0.00415) | 70.03th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (21)
- http://advisories.mageia.org/MGASA-2015-0165.html x_refsource_CONFIRM
- http://curl.haxx.se/docs/adv_20140326B.html x_refsource_CONFIRMVendor Advisory
- http://lists.opensuse.org/opensuse-updates/2014-04/msg00042.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/57836 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/57966 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/57968 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/58615 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59458 third-party-advisoryx_refsource_SECUNIA
- http://www-01.ibm.com/support/docview.wss?uid=swg21675820 x_refsource_CONFIRM
- http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095862 x_refsource_CONFIRM
- http://www.debian.org/security/2014/dsa-2902 vendor-advisoryx_refsource_DEBIAN
- http://www.getchef.com/blog/2014/04/09/chef-server-11-0-12-release/ x_refsource_CONFIRM
- http://www.getchef.com/blog/2014/04/09/enterprise-chef-1-4-9-release/ x_refsource_CONFIRM
- http://www.getchef.com/blog/2014/04/09/enterprise-chef-11-1-3-release/ x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:213 vendor-advisoryx_refsource_MANDRIVA
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html x_refsource_CONFIRM
- http://www.ubuntu.com/usn/USN-2167-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2014-0139 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1079149 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2014-0139
- https://www.cve.org/CVERecord?id=CVE-2014-0139
Change history (0)
No recorded changes yet.