CVE-2021-20235
There's a flaw in the zeromq server in versions before 4.3.3 in src/decoder_allocators.hpp. The decoder static allocator
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.
HIGH · CVSS 8.1
EPSS 0.06576
Schedule remediation
- EPSS percentile: top 9% of all CVEs by exploitation likelihood
- CVSS base score ≥ 7.0
Sigma rules0
YARA rules0