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Debian DSA-4875-1 : openssl - security update

medium Nessus Plugin ID 148170

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Synopsis

The remote Debian host is missing a security-related update.

Description

A NULL pointer dereference was found in the signature_algorithms processing in OpenSSL, a Secure Sockets Layer toolkit, which could result in denial of service.

Additional details can be found in the upstream advisory:
https://www.openssl.org/news/secadv/20210325.txt

Solution

Upgrade the openssl packages.

For the stable distribution (buster), this problem has been fixed in version 1.1.1d-0+deb10u6.

See Also

https://www.openssl.org/news/secadv/20210325.txt

https://security-tracker.debian.org/tracker/source-package/openssl

https://packages.debian.org/source/buster/openssl

https://www.debian.org/security/2021/dsa-4875

Plugin Details

Severity: Medium

ID: 148170

File Name: debian_DSA-4875.nasl

Version: 1.10

Type: local

Agent: unix

Published: 3/26/2021

Updated: 1/12/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

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-2021-3449

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:openssl

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/25/2021

Vulnerability Publication Date: 3/25/2021

Reference Information

CVE: CVE-2021-3449

DSA: 4875

IAVA: 2021-A-0149-S