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Ubuntu 24.04 LTS: USN-6733-2 Critical: GnuTLS Denial Of Service

ubuntu
Calendar Grey April 29, 2024
Dist Ubuntu Esm H88
Numerous vulnerabilities in OpenSSL addressed, affecting Ubuntu 24.04 LTS and prior releases. Make sure to apply updates.
Several security issues were fixed in GnuTLS.

Summary

Several security issues were fixed in GnuTLS.

Software Description:

- gnutls28: GNU TLS library

Details:

USN-6733-1 fixed vulnerabilities in GnuTLS. This update provides the

corresponding updates for Ubuntu 24.04 LTS.

Original advisory details:

It was discovered that GnuTLS had a timing side-channel when performing

certain ECDSA operations. A remote attacker could possibly use this issue

to recover sensitive information. (CVE-2024-28834)

It was discovered that GnuTLS incorrectly handled verifying certain PEM

bundles. A remote attacker could possibly use this issue to cause GnuTLS to

crash, resulting in a denial of service. This issue only affected Ubuntu

22.04 LTS and Ubuntu 23.10. (CVE-2024-28835)

Topics%20covered

Topics Covered

security advisory security issue critical ubuntu gnutls dos

Update Instructions

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

Ubuntu 24.04 LTS
   libgnutls30t64                  3.8.3-1.1ubuntu3.1

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6733-2

https://ubuntu.com/security/notices/USN-6733-1

CVE-2024-28834, CVE-2024-28835

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6733-2

Topics%20covered

Topics Covered

security advisory security issue critical ubuntu gnutls dos

Package Information

https://launchpad.net/ubuntu/+source/gnutls28/3.8.3-1.1ubuntu3.1

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