cURL/libcURL 'curl_easy_unescape()' Heap Memory Corruption Vulnerability

Medium Log Correlation Engine Plugin ID 801395


The cURL program is a library and command-line tool for transferring data using various protocols, including HTTP, FTP, and LDAP. A vulnerable version of cURL was detected from the host.


A heap-based buffer overflow flaw was found in the way libcurl unescaped URLs. A remote attacker could provide a specially-crafted URL that, when processed by an application using libcurl that handles untrusted URLs, would possibly cause it to crash or, potentially, execute arbitrary code. (CVE-2013-2174)


Upgrade the affected packages; the next version of cURL that fixes the issue is cURL 7.31.0.

See Also

Plugin Details

Severity: Medium

ID: 801395

Family: Web Clients

Published: 2013/07/01

Nessus ID: 66981

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

Patch Publication Date: 2013/06/22

Vulnerability Publication Date: 2013/06/22

Reference Information

CVE: CVE-2013-2174

BID: 60737