#VU33162 Buffer overflow in cpio - CVE-2016-2037

Vulnerability identifier: #VU33162

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-2037

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
cpio
Client/Desktop applications / Software for archiving

Vendor: GNU

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The cpio_safer_name_suffix function in util.c in cpio 2.11 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted cpio file.

Mitigation
Install update from vendor's website.

Vulnerable software versions

cpio: 2.11

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External links
https://www.debian.org/security/2016/dsa-3483
https://www.openwall.com/lists/oss-security/2016/01/19/4
https://www.openwall.com/lists/oss-security/2016/01/22/4
https://www.securityfocus.com/bid/82293
https://www.securitytracker.com/id/1035067
https://www.ubuntu.com/usn/USN-2906-1

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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.