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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

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS (Available with Ubuntu Pro) 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
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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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