Vulnerability in N/a
CVE-2023-50868
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…
EPSS: 0.828 (99.6th percentile) — read the EPSS interpretation.
Affected products
- N/a — versions n/a
Public proof-of-concept exploits
References
- nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
- docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
- www.isc.org/blogs/2024-bind-security-release/
- datatracker.ietf.org/doc/html/rfc5155
- kb.isc.org/docs/cve-2023-50868
- gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
- lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
- access.redhat.com/security/cve/CVE-2023-50868
- bugzilla.suse.com/show_bug.cgi
- [oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities (mailing-list)
Frequently asked questions
- What is CVE-2023-50868?
- CVE-2023-50868 is a vulnerability in N/a. Published 2024-02-14.
- Is CVE-2023-50868 known to be exploited?
- 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.