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RUSTSEC-2019-0019
No affected components available
When used in conjunction with the Hash-based Message Authentication Code (HMAC),
the BLAKE2b and BLAKE2s implementations in blake2 crate versions prior to
v0.8.1 used an incorrect block size (32-bytes instead of 64-bytes for BLAKE2s,
and 64-bytes instead of 128-bytes for BLAKE2b), causing them to miscompute the
MacResult.
The v0.8.1 release of the blake2 crate uses the correct block sizes.
Note that this advisory only impacts usage of BLAKE2 with HMAC, and does not
impact Digest functionality.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.
Active exploitation in the wild has been confirmed. Immediate patching or mitigation is required.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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