HIGH
curl: incorrect verification of SSL certificate with NUL in name
Published Aug 14, 2009
7.5
HIGHCVSS 2.0
EPSS 3.46%
Description
lib/ssluse.c in cURL and libcurl 7.4 through 7.19.5, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Affected products
No data.
OR
- 7.4
- 7.4.1
- 7.4.2
- 7.5
- 7.5.1
- 7.5.2
- 7.6
- 7.6.1
- 7.7
- 7.7.1
- 7.7.2
- 7.7.3
- 7.8
- 7.8.1
- 7.9
- 7.9.1
- 7.9.2
- 7.9.3
- 7.9.5
- 7.9.6
- 7.9.7
- 7.9.8
- 7.10
- 7.10.1
- 7.10.2
- 7.10.3
- 7.10.4
- 7.10.5
- 7.10.6
- 7.10.7
- 7.10.8
- 7.11.0
- 7.11.1
- 7.11.2
- 7.12
- 7.12.0
- 7.12.1
- 7.12.2
- 7.12.3
- 7.13
- 7.13.1
- 7.13.2
- 7.14
- 7.14.1
- 7.15
- 7.15.1
- 7.15.2
- 7.15.3
- 7.16.3
- 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
- 7.12
- 7.12.1
- 7.12.2
- 7.12.3
- 7.13
- 7.13.1
- 7.13.2
- 7.14
- 7.14.1
- 7.15
- 7.15.1
- 7.15.2
- 7.15.3
- 7.16.3
No data.
Red Hat Enterprise Linux 3
curl-0:7.10.6-10.rhel3
Fixed · RHSA-2009:1209
Red Hat Enterprise Linux 4
curl-0:7.12.1-11.1.el4_8.1
Fixed · RHSA-2009:1209
Red Hat Enterprise Linux 5
curl-0:7.15.5-2.1.el5_3.5
Fixed · RHSA-2009:1209
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | curl-0:7.10.6-10.rhel3 | Fixed | RHSA-2009:1209 |
| Red Hat Enterprise Linux 4 | curl-0:7.12.1-11.1.el4_8.1 | Fixed | RHSA-2009:1209 |
| Red Hat Enterprise Linux 5 | curl-0:7.15.5-2.1.el5_3.5 | Fixed | RHSA-2009:1209 |
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.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.46% 0.03461
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.03461
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 3, 2026 | 3.46% (0.03461) | 88.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.60% (0.03602) | 87.94th | v5 (v2026.06.15) |
| Dec 1, 2025 | 7.33% (0.07330) | 91.37th | v4 (v2025.03.14) |
| May 4, 2025 | 1.88% (0.01878) | 82.14th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.14% (0.04144) | 87.58th | v4 (v2025.03.14) |
| Mar 29, 2025 | 9.58% (0.09577) | 88.00th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.87% (0.03873) | 87.46th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00148) | 52.25th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.15% (0.00148) | 51.01th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.15% (0.00148) | 48.99th | 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) |
Weaknesses (1)
References (32)
- http://curl.haxx.se/CVE-2009-2417/curl-7.10.6-CVE-2009-2417.patch x_refsource_CONFIRMPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.11.0-CVE-2009-2417.patch x_refsource_CONFIRMPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.12.1-CVE-2009-2417.patch x_refsource_CONFIRMPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.15.1-CVE-2009-2417.patch x_refsource_CONFIRMPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.15.5-CVE-2009-2417.patch x_refsource_CONFIRMPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.16.4-CVE-2009-2417.patch x_refsource_CONFIRMPatchVendor Advisory
- http://curl.haxx.se/CVE-2009-2417/curl-7.18.1-CVE-2009-2417.patch x_refsource_CONFIRMPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.19.0-CVE-2009-2417.patch x_refsource_CONFIRMPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.19.5-CVE-2009-2417.patch x_refsource_CONFIRMPatch
- http://curl.haxx.se/docs/adv_20090812.txt x_refsource_CONFIRMVendor Advisory
- http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html vendor-advisoryx_refsource_APPLE
- http://secunia.com/advisories/36238 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/36475 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/37471 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/45047 third-party-advisoryx_refsource_SECUNIA
- http://shibboleth.internet2.edu/secadv/secadv_20090817.txt x_refsource_CONFIRM
- http://support.apple.com/kb/HT4077 x_refsource_CONFIRM
- http://wiki.rpath.com/Advisories:rPSA-2009-0124 x_refsource_CONFIRM
- http://www.securityfocus.com/archive/1/506055/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/507985/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/36032 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-1158-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html x_refsource_CONFIRM
- http://www.vupen.com/english/advisories/2009/2263 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/3316 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2009-2417 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=516181 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52405 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2009-2417
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10114 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8542 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2009-2417
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Aug 14, 2009
Updated Aug 7, 2024
Reserved Jul 9, 2009
Link CVE-2009-2417
CISA Vulnrichment
Updated n/a