Heap-based buffer overflow in libcurl - CVE-2013-2174

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the "curl_easy_unescape" function. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Affected software

How to mitigate CVE-2013-2174

External References

• http://curl.haxx.se/docs/adv_20130622.html
• http://lists.opensuse.org/opensuse-updates/2013-07/msg00013.html
• http://rhn.redhat.com/errata/RHSA-2013-0983.html
• http://www.debian.org/security/2013/dsa-2713
• http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
• http://www.securityfocus.com/bid/60737
• http://www.ubuntu.com/usn/USN-1894-1
• https://github.com/bagder/curl/commit/192c4f788d48f82c03e9cef40013f34370e90737

Related Security Bulletins

• Heap-based buffer overflow in libcurl
• Multiple vulnerabilities in Hitachi Energy MSM Product
• Slackware Linux update for curl