Vulnerability identifier: #VU33018

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-8619

CWE-ID: CWE-415

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.

The function `read_data()` in security.c in curl before version 7.51.0 is vulnerable to memory double free.

Mitigation
Install update from vendor's website.

Vulnerable software versions

cURL: 7.1 - 7.50.3

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External links
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/94100
http://www.securitytracker.com/id/1037192
http://access.redhat.com/errata/RHSA-2018:2486
http://access.redhat.com/errata/RHSA-2018:3558
http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8619
http://curl.haxx.se/CVE-2016-8619.patch
http://curl.haxx.se/docs/adv_20161102E.html
http://security.gentoo.org/glsa/201701-47
http://www.tenable.com/security/tns-2016-21

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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.