A vulnerability was found in node-tar before version 4.4.2 (excluding version 2.2.2). An Arbitrary File Overwrite issue exists when extracting a tarball containing a hardlink to a file that already exists on the system, in conjunction with a later plain file with the same name as the hardlink. This plain file content replaces the existing file content. A patch has been applied to node-tar v2.2.2).

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A vulnerability was found in node-tar before version 4.4.2 (excluding version 2.2.2). An Arbitrary File
    Overwrite issue exists when extracting a tarball containing a hardlink to a file that already exists on
    the system, in conjunction with a later plain file with the same name as the hardlink. This plain file
    content replaces the existing file content. A patch has been applied to node-tar v2.2.2). (CVE-2018-20834)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1821 advisory.

    Node.js is a software development platform for building fast and scalable network applications in the     JavaScript programming language.

    The following packages have been upgraded to a later upstream version: rh-nodejs8-nodejs (8.16.0).
    (BZ#1665986, BZ#1710734)

    Security Fix(es):

    * nodejs-tar: Arbitrary file overwrites when extracting tarballs containing a hard-link (CVE-2018-20834)

    * nodejs: HTTP request splitting (CVE-2018-12116)

    * nodejs: Denial of Service with large HTTP headers (CVE-2018-12121)

    * nodejs: Slowloris HTTP Denial of Service (CVE-2018-12122)

    * nodejs: Hostname spoofing in URL parser for javascript protocol (CVE-2018-12123)

    * nodejs: Insufficient Slowloris fix causing DoS via server.headersTimeout bypass (CVE-2019-5737)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

ID	Name	Product	Family	Type	Severity
422928	SCA: security update for tar (GHSA-j44m-qm6p-hp7m)	Tenable Cloud Security	SCA Checks	Local	high
422928	SCA: security update for tar (GHSA-j44m-qm6p-hp7m)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
193999	RHEL 7 : rh-nodejs8-nodejs (RHSA-2019:1821)	Nessus	Red Hat Local Security Checks	Local	high

Detections

Analytics

CVE-2018-20834

high

Tenable Plugins

high

high

high