CVE Database


Impact: Moderate
Public: 2013-06-22
Bugzilla: 965640: CVE-2013-2174 curl: Loop counter error, leading to heap-based buffer overflow when decoding certain URLs


The MITRE CVE dictionary describes this issue as:

Heap-based buffer overflow in the curl_easy_unescape function in lib/escape.c in cURL and libcurl 7.7 through 7.30.0 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted string ending in a "%" (percent) character.

Find out more about CVE-2013-2174 from the MITRE CVE dictionary and NIST NVD.

CVSS v2 metrics

Base Score: 6.8
Base Metrics: AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: Partial
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
Red Hat Enterprise Linux version 5 (curl) RHSA-2013:0983 June 25, 2013
Red Hat Enterprise Linux version 6 (curl) RHSA-2013:0983 June 25, 2013

External References


Red Hat would like to thank the cURL project for reporting this issue. Upstream acknowledges Timo Sirainen as the original reporter.

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.