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Amazon Linux 2 : libsolv (ALAS-2019-1374)

medium Nessus Plugin ID 132262

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

There is an illegal address access at ext/testcase.c in libsolv.a in libsolv through 0.7.2 that will cause a denial of service. NOTE: third parties dispute this issue stating that the issue affects the test suite and not the underlying library. It cannot be exploited in any real-world application.(CVE-2018-20534)

There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.(CVE-2018-20532)

There is a NULL pointer dereference at ext/testcase.c (function testcase_str2dep_complex) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.(CVE-2018-20533)

Solution

Run 'yum update libsolv' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2019-1374.html

Plugin Details

Severity: Medium

ID: 132262

File Name: al2_ALAS-2019-1374.nasl

Version: 1.3

Type: local

Agent: unix

Published: 12/19/2019

Updated: 4/3/2024

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-2018-20534

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/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:python2-solv, p-cpe:/a:amazon:linux:libsolv-devel, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:libsolv-demo, p-cpe:/a:amazon:linux:libsolv-tools, p-cpe:/a:amazon:linux:libsolv, p-cpe:/a:amazon:linux:libsolv-debuginfo

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: 12/18/2019

Vulnerability Publication Date: 12/28/2018

Reference Information

CVE: CVE-2018-20532, CVE-2018-20533, CVE-2018-20534

ALAS: 2019-1374