CRITICAL9.8
GHSA-w7j2-35mf-95p7
Incorrect check on buffer length in rand_core
Details
An issue was discovered in the rand_core crate before 0.6.2 for Rust. Because `read_u32_into` and `read_u64_into` mishandle certain buffer-length checks, a random number generator may be seeded with too little data. The vulnerability was introduced in v0.6.0. The advisory doesn't apply to earlier minor version numbers.
Because read_u32_into and read_u64_into mishandle certain buffer-length checks, a random number generator may be seeded with too little data.
Are you affected?
Enter the version of the package you're using.
Affected packages
crates.io/rand_core
Introduced in:
0.6.0Fixed in: 0.6.2Upgrade rand_core to 0.6.2 or newer (ecosystem crates.io).
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-27378[ADVISORY]
- https://github.com/rust-random/rand/pull/1096[WEB]
- https://github.com/rust-random/rand[PACKAGE]
- https://github.com/rust-random/rand/compare/0.6.0...rand_core-0.6.2#diff-f41b3dfa5ce28f3bee390d327c50621e141cf3569921f8e9ca15ccfcf25263a9R19[WEB]
- https://github.com/rust-random/rand/compare/0.6.0...rand_core-0.6.2#diff-f41b3dfa5ce28f3bee390d327c50621e141cf3569921f8e9ca15ccfcf25263a9R28[WEB]
- https://rustsec.org/advisories/RUSTSEC-2021-0023.html[WEB]