Vulnerability identifier: #VU31318

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9594

CWE-ID: CWE-665

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
cURL
Client/Desktop applications / Other client software

Vendor: curl.haxx.se

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

curl before version 7.52.1 is vulnerable to an uninitialized random in libcurl's internal function that returns a good 32bit random value. Having a weak or virtually non-existent random value makes the operations that use it vulnerable.

Mitigation
Install update from vendor's website.

Vulnerable software versions

cURL: 7.52.0

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External links
http://www.securityfocus.com/bid/95094
http://www.securitytracker.com/id/1037528
http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9594
http://curl.haxx.se/docs/adv_20161223.html
http://security.gentoo.org/glsa/201701-47
http://www.tenable.com/security/tns-2017-04

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.