Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : unzip regression (USN-2788-2)

Medium Nessus Plugin ID 86809

Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

USN-2788-1 fixed vulnerabilities in unzip. One of the security patches caused a regression when extracting 0-byte files. This update fixes the problem.

We apologize for the inconvenience.

Gustavo Grieco discovered that unzip incorrectly handled certain password protected archives. If a user or automated system were tricked into processing a specially crafted zip archive, an attacker could possibly execute arbitrary code. (CVE-2015-7696)

Gustavo Grieco discovered that unzip incorrectly handled certain malformed archives. If a user or automated system were tricked into processing a specially crafted zip archive, an attacker could possibly cause unzip to hang, resulting in a denial of service. (CVE-2015-7697).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected unzip package.

See Also

https://usn.ubuntu.com/2788-2/

Plugin Details

Severity: Medium

ID: 86809

File Name: ubuntu_USN-2788-2.nasl

Version: 2.7

Type: local

Agent: unix

Published: 2015/11/10

Updated: 2019/09/18

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:unzip, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:15.04, cpe:/o:canonical:ubuntu_linux:15.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/11/09

Vulnerability Publication Date: 2015/11/06

Reference Information

CVE: CVE-2015-7696, CVE-2015-7697

USN: 2788-2