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Ubuntu 18.04 LTS USN-6499-2 critical: gnutls28 information leak

ubuntu
Calendar Grey January 8, 2024
Dist Ubuntu Esm H88
A newly discovered GnuTLS flaw could expose confidential information over networks. Ubuntu 18.04 LTS users need to take immediate action.
GnuTLS could be made to expose sensitive information over the network.

Summary

GnuTLS could be made to expose sensitive information over the network.

Software Description:

- gnutls28: GNU TLS library

Details:

USN-6499-1 fixed vulnerabilities in GnuTLS. This update provides the

corresponding update for Ubuntu 18.04 LTS.

Original advisory details:

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

certain RSA-PSK key exchanges. A remote attacker could possibly use this

issue to recover sensitive information.

Topics%20covered

Topics Covered

security advisory information leak Ubuntu critical threat network exposure GnuTLS

Update Instructions

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
libgnutls30 3.5.18-1ubuntu1.6+esm1

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

References

https://ubuntu.com/security/notices/USN-6499-2

https://ubuntu.com/security/notices/USN-6499-1

CVE-2023-5981

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6499-2

Topics%20covered

Topics Covered

security advisory information leak Ubuntu critical threat network exposure GnuTLS

Package Information

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