Amazon Linux 2 : libwebp (ALAS-2021-1676)

critical Nessus Plugin ID 151273

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Synopsis

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

Description

The version of libwebp installed on the remote host is prior to 0.3.0-10. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1676 advisory.

- A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow was found in PutLE16().
The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2018-25011)

- A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-36328)

- A flaw was found in libwebp in versions before 1.0.1. A use-after-free was found due to a thread being killed too early. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-36329)

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 libwebp' to update your system.

Plugin Details

Severity: Critical

ID: 151273

File Name: al2_ALAS-2021-1676.nasl

Version: 1.2

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 7/1/2021

Updated: 7/1/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2020-36329

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libwebp-devel, p-cpe:/a:amazon:linux:libwebp-debuginfo, p-cpe:/a:amazon:linux:libwebp, p-cpe:/a:amazon:linux:libwebp-java, p-cpe:/a:amazon:linux:libwebp-tools, cpe:/o:amazon:linux:2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/1/2021

Vulnerability Publication Date: 5/21/2021

Reference Information

CVE: CVE-2018-25011, CVE-2020-36328, CVE-2020-36329

ALAS: 2021-1676

Detections

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