Oracle Linux 7 : openssl (ELSA-2021-9528)

high Nessus Plugin ID 154746

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Synopsis

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

Description

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9528 advisory.

- fix CVE-2021-23841 openssl: NULL pointer dereference in X509_issuer_and_serial_hash()
- fix CVE-2021-23840 openssl: integer overflow in CipherUpdate

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.

Plugin Details

Severity: High

ID: 154746

File Name: oraclelinux_ELSA-2021-9528.nasl

Version: 1.8

Type: local

Agent: unix

Family: Oracle Linux Local Security Checks

Published: 10/30/2021

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-perl, cpe:/o:oracle:linux:7, 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: 10/29/2021

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

Detections

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