- Vulnerability/
- USN-6733-1
USN-6733-1: GnuTLS vulnerabilities
First published: Mon Apr 15 2024(Updated: )
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)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/libgnutls30 | <3.8.1-4ubuntu1.3 | 3.8.1-4ubuntu1.3 |
| Ubuntu | =23.10 | |
| All of | ||
| ubuntu/libgnutls30 | <3.7.3-4ubuntu1.5 | 3.7.3-4ubuntu1.5 |
| Ubuntu | =22.04 | |
| All of | ||
| ubuntu/libgnutls30 | <3.6.13-2ubuntu1.11 | 3.6.13-2ubuntu1.11 |
| Ubuntu | =20.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2024-28835
- https://ubuntu.com/security/CVE-2024-28834
- https://ubuntu.com/security/notices/USN-6733-2
- https://launchpad.net/ubuntu/+source/gnutls28/3.8.1-4ubuntu1.3
- https://launchpad.net/ubuntu/+source/gnutls28/3.7.3-4ubuntu1.5
- https://launchpad.net/ubuntu/+source/gnutls28/3.6.13-2ubuntu1.11
- https://ubuntu.com/security/notices/USN-6733-1 (Advisory)
Frequently Asked Questions
What is the severity of USN-6733-1?
The severity of USN-6733-1 is considered high due to the potential for remote attackers to recover sensitive information.
How do I fix USN-6733-1?
To fix USN-6733-1, update the libgnutls30 package to the appropriate version for your Ubuntu release.
What are the affected versions in USN-6733-1?
USN-6733-1 affects libgnutls30 versions prior to 3.8.1-4ubuntu1.3 for 23.10, 3.7.3-4ubuntu1.5 for 22.04, and 3.6.13-2ubuntu1.11 for 20.04.
What type of vulnerability is USN-6733-1?
USN-6733-1 addresses a timing side-channel vulnerability and incorrect handling of verifying certain PEM bundles in GnuTLS.
What could be the impact of not resolving USN-6733-1?
Not resolving USN-6733-1 could allow remote attackers to exploit the vulnerabilities and potentially access sensitive information.
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