Amazon Linux 2023 : openssl, openssl-devel, openssl-libs (ALAS2023-2024-721)

high Nessus Plugin ID 208979

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2024-721 advisory.

Issue summary: Applications performing certificate name checks (e.g., TLSclients checking server certificates) may attempt to read an invalid memoryaddress resulting in abnormal termination of the application process.

Impact summary: Abnormal termination of an application can a cause a denial ofservice.

Applications performing certificate name checks (e.g., TLS clients checkingserver certificates) may attempt to read an invalid memory address whencomparing the expected name with an `otherName` subject alternative name of anX.509 certificate. This may result in an exception that terminates theapplication program.

Note that basic certificate chain validation (signatures, dates, ...) is notaffected, the denial of service can occur only when the application alsospecifies an expected DNS name, Email address or IP address.

TLS servers rarely solicit client certificates, and even when they do, theygenerally don't perform a name check against a reference identifier (expectedidentity), but rather extract the presented identity after checking thecertificate chain. So TLS servers are generally not affected and the severityof the issue is Moderate.

The FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue. (CVE-2024-6119)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'dnf update openssl --releasever 2023.6.20241010' to update your system.

Plugin Details

Severity: High

ID: 208979

File Name: al2023_ALAS2023-2024-721.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 10/14/2024

Updated: 10/14/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2024-6119

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:H/I:N/A:N

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openssl-debugsource, p-cpe:/a:amazon:linux:openssl-perl, p-cpe:/a:amazon:linux:openssl-snapsafe-libs-debuginfo, p-cpe:/a:amazon:linux:openssl-snapsafe-libs, p-cpe:/a:amazon:linux:openssl-libs-debuginfo, p-cpe:/a:amazon:linux:openssl-devel, p-cpe:/a:amazon:linux:openssl-debuginfo, p-cpe:/a:amazon:linux:openssl, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:openssl-libs

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/10/2024

Vulnerability Publication Date: 6/26/2024

Reference Information

CVE: CVE-2024-6119

IAVA: 2024-A-0541

Detections

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