Debian DLA-1623-1 : tar security update

medium Nessus Plugin ID 119957
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Synopsis

The remote Debian host is missing a security update.

Description

It was discovered that there was a potential denial of service vulnerability in tar, the GNU version of the tar UNIX archiving utility.

The --sparse argument looped endlessly if the file shrank whilst it was being read. Tar would only break out of this endless loop if the file grew again to (or beyond) its original end of file.

For Debian 8 'Jessie', this issue has been fixed in tar version 1.27.1-2+deb8u2.

We recommend that you upgrade your tar 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 tar, and tar-scripts packages.

See Also

https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html

https://packages.debian.org/source/jessie/tar

Plugin Details

Severity: Medium

ID: 119957

File Name: debian_DLA-1623.nasl

Version: 1.5

Type: local

Agent: unix

Published: 1/2/2019

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 1.9

Temporal Score: 1.4

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

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

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:tar, p-cpe:/a:debian:debian_linux:tar-scripts, cpe:/o:debian:debian_linux:8.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/31/2018

Vulnerability Publication Date: 12/26/2018

Reference Information

CVE: CVE-2018-20482