- Reported
-
- Issued
-
- Package
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brotli-sys
(crates.io)
- Type
-
Vulnerability
- Categories
-
- Keywords
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#integer-overflow
- Aliases
-
- References
-
- Patched
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no patched versions
Description
A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB.
An updated version of brotli-sys has not been released. If one cannot update the C library, its authors recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.
In Rust the issue can be mitigated by migrating to the brotli crate, which provides a Rust implementation of Brotli compression and decompression that is not affected by this issue.
Advisory available under CC0-1.0
license.