CVE-2021-20235

描述

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.

受影響套件(1)

• Debian/zeromq3from 0, < 4.3.3-1

CVSS 分數

參考連結(1)

• ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-20235