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Debian DLA-2493-1 : openssl1.0 security update

medium Nessus Plugin ID 144262

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Synopsis

The remote Debian host is missing a security update.

Description

David Benjamin discovered a flaw in the GENERAL_NAME_cmp() function which could cause a NULL dereference, resulting in denial of service.

For Debian 9 stretch, this problem has been fixed in version 1.0.2u-1~deb9u3.

We recommend that you upgrade your openssl1.0 packages.

For the detailed security status of openssl1.0 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/openssl1.0

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected libssl1.0-dev, and libssl1.0.2 packages.

See Also

https://lists.debian.org/debian-lts-announce/2020/12/msg00021.html

https://packages.debian.org/source/stretch/openssl1.0

https://security-tracker.debian.org/tracker/source-package/openssl1.0

Plugin Details

Severity: Medium

ID: 144262

File Name: debian_DLA-2493.nasl

Version: 1.7

Type: local

Agent: unix

Published: 12/15/2020

Updated: 12/6/2022

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: 3.2

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

CVSS Score Source: CVE-2020-1971

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:libssl1.0-dev, p-cpe:/a:debian:debian_linux:libssl1.0.2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/14/2020

Vulnerability Publication Date: 12/8/2020

Reference Information

CVE: CVE-2020-1971

IAVA: 2020-A-0566-S