SB2013112304 - Cryptographic issues in curl.haxx.se cURL
Published: November 23, 2013 Updated: July 28, 2020
Security Bulletin ID
SB2013112304
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Cryptographic issues (CVE-ID: CVE-2013-4545)
The vulnerability allows a remote non-authenticated attacker to manipulate data.
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.
Remediation
Install update from vendor's website.
References
- http://curl.haxx.se/docs/adv_20131115.html
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00047.html
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00053.html
- http://www.debian.org/security/2013/dsa-2798
- http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- http://www.ubuntu.com/usn/USN-2048-1
- https://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04463322