Integer overflow in processing libarchive files in Oracle Solaris

1) Integer overflow in processing libarchive files

EUVDB-ID: #VU26

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-5844

CWE-ID: CWE-732 - Incorrect Permission Assignment for Critical Resource

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when processing files in libarchive. A remote unauthenticated attacker can cause integer buffer overflow in choose_volume() by sending a specially crafted file to vulnerable server.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

The vendor has issued a fix (3.2.1).

Vulnerable software versions

: 11.3

Oracle Linux: 6 - 7

CPE2.3

• cpe:2.3::::11.3:*:*:*:*:*:*:*
• cpe:2.3:o:oracle:oracle_linux:6:*:*:*:*:*:*:*
• cpe:2.3:o:oracle:oracle_linux:7:*:*:*:*:*:*:*

External links

https://www.libarchive.org/
https://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
https://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

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.