RHEL 8 : lz4 (RHSA-2021:2575)

critical Nessus Plugin ID 151135

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Synopsis

The remote Red Hat host is missing a security update for lz4.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:2575 advisory.

The lz4 packages provide support for LZ4, a very fast, lossless compression algorithm that provides compression speeds of 400 MB/s per core and scales with multicore CPUs. It also features an extremely fast decoder that reaches speeds of multiple GB/s per core and typically reaches RAM speed limits on multicore systems.

Security Fix(es):

* lz4: memory corruption due to an integer overflow bug caused by memmove argument (CVE-2021-3520)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in 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 this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL lz4 package based on the guidance in RHSA-2021:2575.

Plugin Details

Severity: Critical

ID: 151135

File Name: redhat-RHSA-2021-2575.nasl

Version: 1.10

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 6/29/2021

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Vendor

Vendor Severity: Moderate

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-2021-3520

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:redhat:enterprise_linux:lz4-devel, cpe:/o:redhat:rhel_eus:8.4, p-cpe:/a:redhat:enterprise_linux:lz4-libs, p-cpe:/a:redhat:enterprise_linux:lz4, cpe:/o:redhat:enterprise_linux:8

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: 6/29/2021

Vulnerability Publication Date: 6/2/2021

Reference Information

CVE: CVE-2021-3520

CWE: 787

RHSA: 2021:2575

Detections

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