Amazon Linux 2 : oniguruma (ALAS-2020-1560)

high Nessus Plugin ID 142733

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Synopsis

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

Description

The version of oniguruma installed on the remote host is prior to 5.9.6-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2020-1560 advisory.

In Oniguruma 6.9.5_rev1, an attacker able to supply a regular expression for compilation may be able to overflow a buffer by one byte in concat_opt_exact_str in src/regcomp.c . (CVE-2020-26159)

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

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

Solution

Run 'yum update oniguruma' to update your system.

Plugin Details

Severity: High

ID: 142733

File Name: al2_ALAS-2020-1560.nasl

Version: 1.3

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 11/11/2020

Updated: 12/11/2024

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

Risk Information

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2020-26159

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:oniguruma-devel, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:oniguruma, p-cpe:/a:amazon:linux:oniguruma-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/9/2020

Vulnerability Publication Date: 9/30/2020

Reference Information

CVE: CVE-2020-26159

ALAS: 2020-1560

Detections

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