Buffer overflow in GNU cpio

1) Buffer overflow

EUVDB-ID: #VU33162

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 - Memory corruption

Exploit availability: No

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

CPE2.3

• cpe:2.3:a:gnu:cpio:2.11:*:*:*:*:*:*:*

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

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to open a a specially crafted archive.

Is there known malware, which exploits this vulnerability?

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