Path traversal in GNU Glibc

1) Path traversal

EUVDB-ID: #VU41440

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-0475

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

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

Multiple directory traversal vulnerabilities in GNU C Library (aka glibc or libc6) before 2.20 allow context-dependent attackers to bypass ForceCommand restrictions and possibly have other unspecified impact via a .. (dot dot) in a (1) LC_*, (2) LANG, or other locale environment variable.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Glibc: 2.0 - 2.18

CPE2.3

• cpe:2.3:a:gnu:glibc:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.0.2:*:*:*:*:*:*:*

External links

http://linux.oracle.com/errata/ELSA-2015-0092.html
http://www.debian.org/security/2014/dsa-2976
http://www.mandriva.com/security/advisories?name=MDVSA-2014:152
http://www.openwall.com/lists/oss-security/2014/07/10/7
http://www.openwall.com/lists/oss-security/2014/07/14/6
http://www.securityfocus.com/bid/68505
http://www.securitytracker.com/id/1030569
http://rhn.redhat.com/errata/RHSA-2014-1110.html
http://security.gentoo.org/glsa/201602-02
http://sourceware.org/bugzilla/show_bug.cgi?id=17137

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.