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Amazon Linux AMI : git (ALAS-2018-948)

medium Nessus Plugin ID 106693

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

Mishandling layers of tree objects

Git through 2.14.2 mishandles layers of tree objects, which allows remote attackers to cause a denial of service (memory consumption) via a crafted repository, aka a Git bomb. This can also have an impact of disk consumption; however, an affected process typically would not survive its attempt to build the data structure in memory before writing to disk. (CVE-2017-15298)

Solution

Run 'yum update git' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2018-948.html

Plugin Details

Severity: Medium

ID: 106693

File Name: ala_ALAS-2018-948.nasl

Version: 3.3

Type: local

Agent: unix

Published: 2/9/2018

Updated: 10/30/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2017-15298

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:git-p4, p-cpe:/a:amazon:linux:git-daemon, p-cpe:/a:amazon:linux:git-hg, p-cpe:/a:amazon:linux:git-cvs, p-cpe:/a:amazon:linux:perl-git-svn, p-cpe:/a:amazon:linux:git-all, p-cpe:/a:amazon:linux:git-email, p-cpe:/a:amazon:linux:perl-git, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:git-debuginfo, p-cpe:/a:amazon:linux:git, p-cpe:/a:amazon:linux:emacs-git, p-cpe:/a:amazon:linux:git-svn, p-cpe:/a:amazon:linux:gitweb, p-cpe:/a:amazon:linux:emacs-git-el, p-cpe:/a:amazon:linux:git-bzr

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/7/2018

Reference Information

CVE: CVE-2017-15298

ALAS: 2018-948