oss-sec mailing list archives

Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities

From: Alan Coopersmith <alan.coopersmith () oracle com>
Date: Tue, 13 Feb 2024 12:06:42 -0800

On 2/13/24 06:07, Yorgos Thessalonikefs wrote:

DNSSEC protocol vulnerabilities have been discovered that render various
DNSSEC validators victims of Denial Of Service while trying to validate
specially crafted DNSSEC responses.

There are two known vulnerabilities: CVE-2023-50387 (referred here as
the KeyTrap vulnerability) and CVE-2023-50868 (referred here as the
NSEC3 vulnerability).


Similarly, dnsmasq 2.90 was published today to address these:
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html

--
        -Alan Coopersmith-                 alan.coopersmith () oracle com
         Oracle Solaris Engineering - https://blogs.oracle.com/solaris

Current thread:

Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities Yorgos Thessalonikefs (Feb 13)
- Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities Alan Coopersmith (Feb 13)
  - Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities Solar Designer (Feb 13)
    - Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities Solar Designer (Feb 13)
    - Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities Alan Coopersmith (Feb 16)
    - Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities Solar Designer (Feb 16)