MGASA-2024-0041 - Updated dnsmasq packages fix security vulnerabilities

Publication date: 18 Feb 2024
URL: https://advisories.mageia.org/MGASA-2024-0041.html
Type: security
Affected Mageia releases: 9
CVE: CVE-2023-50387,
     CVE-2023-50868

This updated dnsmasq package fixes security issues:
Certain DNSSEC aspects of the DNS protocol allow a remote attacker to
trigger a denial of service via extreme consumption of resource caused
by DNSSEC query or response:
- KeyTrap - Extreme CPU consumption in DNSSEC validator.
  (CVE-2023-50387)
- Preparing an NSEC3 closest encloser proof can exhaust CPU resources.
  (CVE-2023-50868)

This update also fixes issues with udp packet size (fix already present
in mageia package for 2.89), possible segfault and caching.

References:
- https://bugs.mageia.org/show_bug.cgi?id=32853
- https://thekelleys.org.uk/dnsmasq/CHANGELOG
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-50387
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-50868

SRPMS:
- 9/core/dnsmasq-2.90-1.mga9

Mageia 2024-0041: dnsmasq security update

This updated dnsmasq package fixes security issues: Certain DNSSEC aspects of the DNS protocol allow a remote attacker to trigger a denial of service via extreme consumption of res...

Summary

This updated dnsmasq package fixes security issues: Certain DNSSEC aspects of the DNS protocol allow a remote attacker to trigger a denial of service via extreme consumption of resource caused by DNSSEC query or response: - KeyTrap - Extreme CPU consumption in DNSSEC validator. (CVE-2023-50387) - Preparing an NSEC3 closest encloser proof can exhaust CPU resources. (CVE-2023-50868)
This update also fixes issues with udp packet size (fix already present in mageia package for 2.89), possible segfault and caching.

References

- https://bugs.mageia.org/show_bug.cgi?id=32853

- https://thekelleys.org.uk/dnsmasq/CHANGELOG

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-50387

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-50868

Resolution

MGASA-2024-0041 - Updated dnsmasq packages fix security vulnerabilities

SRPMS

- 9/core/dnsmasq-2.90-1.mga9

Severity
Publication date: 18 Feb 2024
URL: https://advisories.mageia.org/MGASA-2024-0041.html
Type: security
CVE: CVE-2023-50387, CVE-2023-50868

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