RUSTSEC-2022-0033

Heap memory corruption with RSA private key operation

Reported

July 5, 2022

Issued

July 5, 2022 (last modified: June 13, 2023)

Package

openssl-src (crates.io)

Type

Vulnerability

Categories

crypto-failure

Aliases

References

https://www.openssl.org/news/secadv/20220705.txt

Patched

>=300.0.9

Unaffected

<300.0.8

Description

The OpenSSL 3.0.4 release introduced a serious bug in the RSA implementation for X86_64 CPUs supporting the AVX512IFMA instructions. This issue makes the RSA implementation with 2048 bit private keys incorrect on such machines and memory corruption will happen during the computation. As a consequence of the memory corruption an attacker may be able to trigger a remote code execution on the machine performing the computation.

SSL/TLS servers or other servers using 2048 bit RSA private keys running on machines supporting AVX512IFMA instructions of the X86_64 architecture are affected by this issue.

Note that on a vulnerable machine, proper testing of OpenSSL would fail and should be noticed before deployment.

Advisory available under CC0-1.0 license.