What is the vulnerability in OpenSSL (CVE-2023-2650)?

OpenSSL incorrectly handles certain ASN.1 object identifiers, which can be exploited by a remote attacker to cause a denial of service.

How does the OpenSSL vulnerability affect Ubuntu 16.04?

The OpenSSL vulnerability affects Ubuntu 16.04 and can be exploited by a remote attacker to cause a denial of service.

How does the OpenSSL vulnerability affect Ubuntu 14.04?

The OpenSSL vulnerability affects Ubuntu 14.04 and can be exploited by a remote attacker to cause a denial of service.

What is the remedy for the OpenSSL vulnerability in Ubuntu 16.04?

The remedy for the OpenSSL vulnerability in Ubuntu 16.04 is to update OpenSSL to version 1.0.2g-1ubuntu4.20+esm9.

What is the remedy for the OpenSSL vulnerability in Ubuntu 14.04?

The remedy for the OpenSSL vulnerability in Ubuntu 14.04 is to update OpenSSL to version 1.0.1f-1ubuntu2.27+esm9.

Vulnerability/
USN-6188-1

22/6/2023

USN-6188-1: OpenSSL vulnerability

First published: Thu Jun 22 2023(Updated: )

Matt Caswell discovered that OpenSSL incorrectly handled certain ASN.1 object identifiers. A remote attacker could possibly use this issue to cause OpenSSL to consume resources, resulting in a denial of service.

Affected Software	Affected Version	How to fix
All of
ubuntu/openssl	<1.0.2g-1ubuntu4.20+esm9	1.0.2g-1ubuntu4.20+esm9
	=16.04
All of
ubuntu/libssl1.0.0	<1.0.2g-1ubuntu4.20+esm9	1.0.2g-1ubuntu4.20+esm9
	=16.04
All of
ubuntu/openssl	<1.0.1f-1ubuntu2.27+esm9	1.0.1f-1ubuntu2.27+esm9
	=14.04
All of
ubuntu/libssl1.0.0	<1.0.1f-1ubuntu2.27+esm9	1.0.1f-1ubuntu2.27+esm9
	=14.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2023-2650

Frequently Asked Questions

What is the vulnerability in OpenSSL (CVE-2023-2650)?
OpenSSL incorrectly handles certain ASN.1 object identifiers, which can be exploited by a remote attacker to cause a denial of service.
How does the OpenSSL vulnerability affect Ubuntu 16.04?
The OpenSSL vulnerability affects Ubuntu 16.04 and can be exploited by a remote attacker to cause a denial of service.
How does the OpenSSL vulnerability affect Ubuntu 14.04?
The OpenSSL vulnerability affects Ubuntu 14.04 and can be exploited by a remote attacker to cause a denial of service.
What is the remedy for the OpenSSL vulnerability in Ubuntu 16.04?
The remedy for the OpenSSL vulnerability in Ubuntu 16.04 is to update OpenSSL to version 1.0.2g-1ubuntu4.20+esm9.
What is the remedy for the OpenSSL vulnerability in Ubuntu 14.04?
The remedy for the OpenSSL vulnerability in Ubuntu 14.04 is to update OpenSSL to version 1.0.1f-1ubuntu2.27+esm9.

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source/Ubuntu
anchor-related/USN-6119-1
anchor-related/USN-6672-1
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