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Debian: CVE-2023-50868: Multiple Affected Packages

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Debian: CVE-2023-50868: Multiple Affected Packages

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/14/2024
Created
02/24/2024
Added
02/23/2024
Modified
01/13/2025

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)

  • debian-upgrade-bind9
  • debian-upgrade-dnsjava
  • debian-upgrade-dnsmasq
  • debian-upgrade-knot-resolver
  • debian-upgrade-pdns-recursor
  • debian-upgrade-systemd
  • debian-upgrade-unbound

References

  • https://attackerkb.com/topics/cve-2023-50868
  • CVE - 2023-50868
  • DLA-3736-1
  • DSA-5620-1
  • DSA-5621-1
  • DSA-5626-1
  • 查看数 711
  • 已创建
  • 最后回复

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