CVE-2021-20235 (GCVE-0-2021-20235)

Vulnerability from cvelistv5 – Published: 2021-04-01 13:47 – Updated: 2024-08-03 17:37
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a zeromq Affected: zeromq 4.3.3
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