CVE-2023-50868
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
netapp
commercial·US
АО «НТЦ ИТ РОСА»
commercial·RU
isc
commercial·USaka internet systems consortium
fedoraproject
oss-project·USaka fedora project
debian
oss-project·GBaka debian gnu/linux
Red Hat Inc.
commercial·USaka redhat, red hat
and 12 more affected products View all →
Exploitability
Official Patch Available
Workaround Available
Attack Graph
Products CVE Techniques Tactics
Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.
MITRE ATT&CK
1 technique Impact
References
http://www.openwall.com/lists/oss-security/2024/02/16/2
openwall.com
http://www.openwall.com/lists/oss-security/2024/02/16/3
openwall.com
https://access.redhat.com/security/cve/CVE-2023-50868
access.redhat.com
and 58 more references View all →
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