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FreeBSD : p7zip -- NULL pointer dereference (48e83187-b6e9-11e6-b6cf-5453ed2e2b49)

high Nessus Plugin ID 95419

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Synopsis

The remote FreeBSD host is missing a security-related update.

Description

MITRE reports :

A NULL pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of NULL pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams, as used in the 7z.so library and in 7z applications, will cause a crash and a denial of service when decoding malformed 7z files.

Solution

Update the affected package.

See Also

https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/

https://sourceforge.net/p/p7zip/bugs/185/

https://nvd.nist.gov/vuln/detail/CVE-2016-9296

http://www.nessus.org/u?5e9aadaf

Plugin Details

Severity: High

ID: 95419

File Name: freebsd_pkg_48e83187b6e911e6b6cf5453ed2e2b49.nasl

Version: 3.4

Type: local

Published: 12/1/2016

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:p7zip, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 11/30/2016

Vulnerability Publication Date: 7/17/2016

Reference Information

CVE: CVE-2016-9296