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MGASA-2024-0089 - Updated gnutls packages fix security vulnerabilities

Publication date: 26 Mar 2024
URL: https://advisories.mageia.org/MGASA-2024-0089.html
Type: security
Affected Mageia releases: 9
CVE: CVE-2024-28834,
     CVE-2024-28835

The Minerva attack is a cryptographic vulnerability that exploits
deterministic behavior in systems like GnuTLS, leading to side-channel
leaks. In specific scenarios, such as when using the
GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE flag, it can result in a noticeable
step in nonce size from 513 to 512 bits, exposing a potential timing
side-channel. (CVE-2024-28834)
A flaw has been discovered in GnuTLS where an application crash can be
induced when attempting to verify a specially crafted .pem bundle using
the "certtool --verify-chain" command. (CVE-2024-28835)

References:
- https://bugs.mageia.org/show_bug.cgi?id=32989
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2024&m=slackware-security.365688
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-28834
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-28835

SRPMS:
- 9/core/gnutls-3.8.4-1.mga9

Mageia 2024-0089: gnutls security update

The Minerva attack is a cryptographic vulnerability that exploits deterministic behavior in systems like GnuTLS, leading to side-channel leaks

Summary

The Minerva attack is a cryptographic vulnerability that exploits deterministic behavior in systems like GnuTLS, leading to side-channel leaks. In specific scenarios, such as when using the GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE flag, it can result in a noticeable step in nonce size from 513 to 512 bits, exposing a potential timing side-channel. (CVE-2024-28834) A flaw has been discovered in GnuTLS where an application crash can be induced when attempting to verify a specially crafted .pem bundle using the "certtool --verify-chain" command. (CVE-2024-28835)

References

- https://bugs.mageia.org/show_bug.cgi?id=32989

- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2024&m=slackware-security.365688

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-28834

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-28835

Resolution

MGASA-2024-0089 - Updated gnutls packages fix security vulnerabilities

SRPMS

- 9/core/gnutls-3.8.4-1.mga9

Severity
Publication date: 26 Mar 2024
URL: https://advisories.mageia.org/MGASA-2024-0089.html
Type: security
CVE: CVE-2024-28834, CVE-2024-28835

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