vulnerability
Debian: CVE-2023-50868: Multiple Affected Packages
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Feb 14, 2024 | Feb 23, 2024 | May 27, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Feb 14, 2024
Added
Feb 23, 2024
Modified
May 27, 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-bind9debian-upgrade-dnsmasqdebian-upgrade-knot-resolverdebian-upgrade-pdns-recursordebian-upgrade-systemddebian-upgrade-unboundno-fix-debian-deb-package
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