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Alma Linux: CVE-2023-50868: Important: unbound security update (Multiple Advisories)

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Alma Linux: CVE-2023-50868: Important: unbound security update (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/14/2024
Created
03/01/2024
Added
02/29/2024
Modified
07/26/2024

Description

The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.

Solution(s)

  • alma-upgrade-bind
  • alma-upgrade-bind-chroot
  • alma-upgrade-bind-devel
  • alma-upgrade-bind-dnssec-doc
  • alma-upgrade-bind-dnssec-utils
  • alma-upgrade-bind-doc
  • alma-upgrade-bind-dyndb-ldap
  • alma-upgrade-bind-libs
  • alma-upgrade-bind-license
  • alma-upgrade-bind-utils
  • alma-upgrade-dnsmasq
  • alma-upgrade-dnsmasq-utils
  • alma-upgrade-python3-bind
  • alma-upgrade-python3-unbound
  • alma-upgrade-unbound
  • alma-upgrade-unbound-devel
  • alma-upgrade-unbound-libs

References

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