Detections
Analytics

Oracle Linux 8 : openssl (ELSA-2021-9561)

high Nessus Plugin ID 155673

Language:

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9561 advisory.

 [1:1.1.1k-4]
 - Fixes bugs in s390x AES code.
 - Uses the first detected address family if IPv6 is not available
 - Reverts the changes in https://github.com/openssl/openssl/pull/13305 as it introduces a regression if server has a DSA key pair, the handshake fails when the protocol is not explicitly set to TLS 1.2. However, if the patch is reverted, it has an effect on the 'ssl_reject_handshake' feature in nginx. Although, this feature will continue to work, TLS 1.3 protocol becomes unavailable/disabled. This is already known - https://trac.nginx.org/nginx/ticket/2071#comment:1 As per https://github.com/openssl/openssl/issues/16075#issuecomment-879939938, nginx could early callback instead of servername callback.
 - Resolves: rhbz#1978214
 - Related: rhbz#1934534

 [1:1.1.1k-3]
 - Cleansup the peer point formats on renegotiation
 - Resolves rhbz#1965362

 [1:1.1.1k-2]
 - Fixes FIPS_selftest to work in FIPS mode. Resolves: rhbz#1940085
 - Using safe primes for FIPS DH self-test

 [1.1.1k-1]
 - Update to version 1.1.1k

 [1.1.1g-16]
 - Use AI_ADDRCONFIG only when explicit host name is given
 - Allow only curves defined in RFC 8446 in TLS 1.3

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2021-9561.html

Plugin Details

Severity: High

ID: 155673

File Name: oraclelinux_ELSA-2021-9561.nasl

Version: 1.7

Type: local

Agent: unix

Published: 11/23/2021

Updated: 11/1/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2021-23840

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/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: p-cpe:/a:oracle:linux:openssl-static, p-cpe:/a:oracle:linux:openssl-debugsource, p-cpe:/a:oracle:linux:openssl-perl, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:openssl-devel, p-cpe:/a:oracle:linux:openssl-libs, p-cpe:/a:oracle:linux:openssl

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/23/2021

Vulnerability Publication Date: 2/16/2021

Reference Information

CVE: CVE-2021-23840, CVE-2021-23841

IAVA: 2021-A-0103-S, 2021-A-0193-S, 2021-A-0195