GHSA-rm66-9gh4-4gp8 cggmp21 vulnerable to ambiguous challenge derivation

Not scored Published

Ambiguous challenge derivation in cggmp21 non-interactive ZK proofs may allow security bypasses, affecting Rust applications using this library.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is GHSA-rm66-9gh4-4gp8?

GHSA-rm66-9gh4-4gp8 is a vulnerability in cggmp21, published on 18 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Challenge derivation in non-interactive ZK proofs was ambiguous and that could lead to security vulnerability (however, it's unknown if it could be exploited).

Which versions are affected by GHSA-rm66-9gh4-4gp8?

3 open source packages ship an affected version, including cggmp21.

PackageAffectedFixed in
cggmp21 crates.ioAll versions0.4.0
cggmp21 crates.ioAll versions0.4.0
cggmp21 crates.ioFrom 0.0.0-00.4.0

How do I fix GHSA-rm66-9gh4-4gp8?

Upgrade cggmp21 to 0.4.0 or later.

Is GHSA-rm66-9gh4-4gp8 being exploited?

There is no known exploitation of GHSA-rm66-9gh4-4gp8 in the wild and no public exploit code.

Sources

Also known as RUSTSEC-2024-0393.

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