CVE-2013-4545 json
cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_V…
published 2013-11-23 12 y ago modified 2026-06-16 4 mo ago also EUVD-2013-4404
- cvss
- 4.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.0%
- EPSS 3.0% chance of exploitation in 30 days, percentile 87%
- public exploits
- 0
- none known
Summary
cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_VERIFYHOST) when the digital signature verification (CURLOPT_SSL_VERIFYPEER) is disabled, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
Patch / fix
- haxx curl 7.33.0
- haxx libcurl 7.33.0
- curl Debian 14, Debian 13, Debian 12 7.33.0-1
debian advisories DEBIAN-CVE-2013-4545
- curl openSUSE Tumbleweed 7.51.0-1.1
opensuse advisories openSUSE-SU-2024:10303-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2013-4545 updated cvss 2.6
curl: TLS/SSL certificate name check disabled with peer verification
-
Red Hat Enterprise Linux 5 curl Red Hat Enterprise Linux 6 curl, libcurl Red Hat Enterprise Linux 7 curl, libcurlnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
2.97% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-310 Cryptographic Issues
References
-
h20564.www2.hp.com
/hpsc/doc/public/display?docId=emr_na-c04463322
vendor-advisory
-
debian.org
/security/2013/dsa-2798
vendor-advisory
-
lists.opensuse.org
/opensuse-updates/2013-12/msg00047.html
vendor-advisory
-
ubuntu.com
/usn/USN-2048-1
vendor-advisory
-
lists.opensuse.org
/opensuse-updates/2013-12/msg00053.html
vendor-advisory
-
curl.haxx.se
/docs/adv_20131115.html
vendor-advisory
- oracle.com /technetwork/topics/security/cpujul2015-2367936.html
- oracle.com /technetwork/topics/security/cpujan2015-1972971.html
- oracle.com /technetwork/topics/security/cpuapr2015-2365600.html
Sources
- CVE List CVE-2013-4545
- NVD CVE-2013-4545
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Improve affected version range and add fix versions.