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Ubuntu 20.04 LTS: 1234-5 Major OpenSSL Vulnerability Exploitation

ubuntu
Calendar Grey June 22, 2023
Dist Ubuntu Esm H88
A critical OpenSSL flaw in Ubuntu could lead to service interruptions because of improper resource handling. Ensure you update immediately for your safety.
OpenSSL could be made to consume resources and cause long delays if it processed certain input.

Summary

OpenSSL could be made to consume resources and cause long

delays if it processed certain input.

Software Description:

- openssl: Secure Socket Layer (SSL) cryptographic library and tools

Details:

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.

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu openssl

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   libssl1.0.0                     1.0.2g-1ubuntu4.20+esm9
   openssl                         1.0.2g-1ubuntu4.20+esm9

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   libssl1.0.0                     1.0.1f-1ubuntu2.27+esm9
   openssl                         1.0.1f-1ubuntu2.27+esm9

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-6188-1

  CVE-2023-2650

Severity
important
Lowest
Low
Medium
High
Critical

June 22, 2023

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu openssl

Package Information

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