RHEL 7 : git (RHSA-2017:2004)

high Nessus Plugin ID 102110

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Synopsis

The remote Red Hat host is missing one or more security updates for git.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:2004 advisory.

Git is a distributed revision control system with a decentralized architecture. As opposed to centralized version control systems with a client-server model, Git ensures that each working copy of a Git repository is an exact copy with complete revision history. This not only allows the user to work on and contribute to projects without the need to have permission to push the changes to their official repositories, but also makes it possible for the user to work with no network connection.

Security Fix(es):

* It was found that the git-prompt.sh script shipped with git failed to correctly handle branch names containing special characters. A specially crafted git repository could use this flaw to execute arbitrary commands if a user working with the repository configured their shell to include repository information in the prompt. (CVE-2014-9938)

* A flaw was found in the way git-shell handled command-line options for the restricted set of git-shell commands. A remote, authenticated attacker could use this flaw to bypass git-shell restrictions, to view and manipulate files, by abusing the instance of the less command launched using crafted command-line options. (CVE-2017-8386)

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from 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.

Solution

Update the RHEL git package based on the guidance in RHSA-2017:2004.

Plugin Details

Severity: High

ID: 102110

File Name: redhat-RHSA-2017-2004.nasl

Version: 3.13

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 8/2/2017

Updated: 3/20/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2014-9938

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

CVSS Score Source: CVE-2017-8386

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:emacs-git-el, p-cpe:/a:redhat:enterprise_linux:gitweb, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:git-email, p-cpe:/a:redhat:enterprise_linux:gitk, p-cpe:/a:redhat:enterprise_linux:perl-git, p-cpe:/a:redhat:enterprise_linux:git-all, p-cpe:/a:redhat:enterprise_linux:git-bzr, p-cpe:/a:redhat:enterprise_linux:git-daemon, p-cpe:/a:redhat:enterprise_linux:git-svn, p-cpe:/a:redhat:enterprise_linux:perl-git-svn, p-cpe:/a:redhat:enterprise_linux:git, p-cpe:/a:redhat:enterprise_linux:git-hg, p-cpe:/a:redhat:enterprise_linux:git-cvs, p-cpe:/a:redhat:enterprise_linux:git-gui, p-cpe:/a:redhat:enterprise_linux:emacs-git, p-cpe:/a:redhat:enterprise_linux:git-p4

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 8/1/2017

Vulnerability Publication Date: 3/20/2017

Reference Information

CVE: CVE-2014-9938, CVE-2017-8386

CWE: 78

RHSA: 2017:2004

Detections

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