RHEL 7 : nettle (RHSA-2021:2760)

high Nessus Plugin ID 151811

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Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:2760 advisory.

Nettle is a cryptographic library that is designed to fit easily in almost any context: In crypto toolkits for object-oriented languages, such as C++, Python, or Pike, in applications like LSH or GNUPG, or even in kernel space.

Security Fix(es):

* nettle: Out of bounds memory access in signature verification (CVE-2021-20305)

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 nettle package based on the guidance in RHSA-2021:2760.

Plugin Details

Severity: High

ID: 151811

File Name: redhat-RHSA-2021-2760.nasl

Version: 1.7

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/19/2021

Updated: 11/7/2024

Supported Sensors: Agentless Assessment, Continuous 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: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2021-20305

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/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:nettle-devel, p-cpe:/a:redhat:enterprise_linux:nettle, cpe:/o:redhat:rhel_aus:7.3

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: 7/19/2021

Vulnerability Publication Date: 4/5/2021

Reference Information

CVE: CVE-2021-20305

CWE: 787

RHSA: 2021:2760

Detections

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