Debian DLA-1268-1 : p7zip security update

high Nessus Plugin ID 106591

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Synopsis

The remote Debian host is missing a security update.

Description

The p7zip package has a heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip which allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.

For Debian 7 'Wheezy', these problems have been fixed in version 9.20.1~dfsg.1-4+deb7u3.

We recommend that you upgrade your p7zip packages.

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

Solution

Upgrade the affected p7zip, and p7zip-full packages.

Plugin Details

Severity: High

ID: 106591

File Name: debian_DLA-1268.nasl

Version: 3.7

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 2/5/2018

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:p7zip, p-cpe:/a:debian:debian_linux:p7zip-full, cpe:/o:debian:debian_linux:7.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/2/2018

Reference Information

CVE: CVE-2017-17969

Detections

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