Vulnerability CVE-2020-36400
Published: 2021-07-01

Description:
ZeroMQ libzmq 4.3.3 has a heap-based buffer overflow in zmq::tcp_read, a different vulnerability than CVE-2021-20235.

Type:

CWE-787

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Zeromq -> Libzmq 

 References:
https://github.com/zeromq/libzmq/commit/397ac80850bf8d010fae23dd215db0ee2c677306
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26042
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libzmq/OSV-2020-1887.yaml
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