Vulnerability identifier: #VU30583

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-1396

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Patch
Server applications / File servers (FTP/HTTP)

Vendor: GNU

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

A Directory Traversal vulnerability exists in the GNU patch before 2.7.4. A remote attacker can write to arbitrary files via a symlink attack in a patch file. NOTE: this issue exists because of an incomplete fix for CVE-2015-1196.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Patch: 2.7.0 - 2.7.3

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External links
http://www.openwall.com/lists/oss-security/2015/01/27/29
http://www.securityfocus.com/bid/75358
http://www.ubuntu.com/usn/USN-2651-1
http://bugzilla.redhat.com/show_bug.cgi?id=1186764

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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.