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

This script is Copyright (C) 2016 Tenable Network Security, Inc.


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.

See also :

https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/
https://sourceforge.net/p/p7zip/bugs/185/
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-9296
http://www.nessus.org/u?4ac74652

Solution :

Update the affected package.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 95419 ()

Bugtraq ID:

CVE ID: CVE-2016-9296

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