Vulnerability Monitor

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CVE-2020-36400

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

Published

2021-07-01T03:15:07.787

Last Modified

2024-11-21T05:29:24.827

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	zeromq	libzmq	4.3.3	Yes

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26042 Issue Tracking, Mailing List, Patch, Third Party Advisory ([email protected])
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libzmq/OSV-2020-1887.yaml Third Party Advisory ([email protected])
https://github.com/zeromq/libzmq/commit/397ac80850bf8d010fae23dd215db0ee2c677306 Patch, Third Party Advisory ([email protected])
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26042 Issue Tracking, Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libzmq/OSV-2020-1887.yaml Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/zeromq/libzmq/commit/397ac80850bf8d010fae23dd215db0ee2c677306 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)