Debian dla-3237 : node-tar - security update

high Nessus Plugin ID 168639

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-3237 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-3237-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin December 12, 2022 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : node-tar Version : 4.4.6+ds1-3+deb10u2 CVE ID : CVE-2021-37701 CVE-2021-37712 Debian Bug : 993981

Cache poisoning vulnerabilities were found in node-tar, a Node.js module used to read and write portable tar archives, which may result in arbitrary file creation or overwrite.

CVE-2021-37701

It was discovered that node-tar performed insufficient symlink protection, thereby making directory cache vulnerable to poisoning using symbolic links.

Upon extracting an archive containing a directory 'foo/bar' followed with a symbolic link 'foo\\bar' to an arbitrary location, node-tar would extract arbitrary files into the symlink target, thus allowing arbitrary file creation and overwrite.

Moreover, on case-insensitive filesystems, a similar issue occurred with a directory 'FOO' followed with a symbolic link 'foo'.

CVE-2021-37712

Similar to CVE-2021-37701, a specially crafted tar archive containing two directories and a symlink with names containing unicode values that normalized to the same value, would bypass node-tar's symlink checks on directories, thus allowing arbitrary file creation and overwrite.

For Debian 10 buster, these problems have been fixed in version 4.4.6+ds1-3+deb10u2.

We recommend that you upgrade your node-tar packages.

For the detailed security status of node-tar please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/node-tar

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the node-tar packages.

Plugin Details

Severity: High

ID: 168639

File Name: debian_DLA-3237.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 12/12/2022

Updated: 1/22/2025

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

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.3

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

CVSS Score Source: CVE-2021-37712

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:node-tar

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/12/2022

Vulnerability Publication Date: 8/31/2021

Reference Information

CVE: CVE-2021-37701, CVE-2021-37712

Detections

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