Description
There's a flaw in the zeromq server in versions before 4.3.3 in src/decoder_allocators.hpp. The decoder static allocator could have its sized changed, but the buffer would remain the same as it is a static buffer. A remote, unauthenticated attacker who sends a crafted request to the zeromq server could trigger a buffer overflow WRITE of arbitrary data if CURVE/ZAP authentication is not enabled. The greatest impact of this flaw is to application availability, data integrity, and confidentiality.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
zeromq
oss-projectaka zmq, 0mq, libzmq
Сообщество свободного программного обеспечения
oss-projectaka fsf
iMatix
oss-project
АО «Концерн ВНИИНС»
commercial·RUaka ao konsern vniins
and 1 more affected products View all →
Exploitability
Official Patch 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
2 techniques Initial Access
Privilege Escalation
References
https://bugzilla.redhat.com/show_bug.cgi?id=1921983
bugzilla.redhat.com
https://github.com/zeromq/libzmq/security/advisories/GHSA-fc3w-qxf5-7hp6
github.com
https://bugzilla.redhat.com/show_bug.cgi?id=1921983
bugzilla.redhat.com
and 10 more references View all →
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