Bugzilla – Bug 1188174
VUL-0: CVE-2021-32714: rust: hyper - Integer Overflow in Chunked Transfer-Encoding
Last modified: 2023-07-04 07:20:35 UTC
CVE-2021-32714 hyper is an HTTP library for Rust. In versions prior to 0.14.10, hyper's HTTP server and client code had a flaw that could trigger an integer overflow when decoding chunk sizes that are too big. This allows possible data loss, or if combined with an upstream HTTP proxy that allows chunk sizes larger than hyper does, can result in "request smuggling" or "desync attacks." The vulnerability is patched in version 0.14.10. Two possible workarounds exist. One may reject requests manually that contain a `Transfer-Encoding` header or ensure any upstream proxy rejects `Transfer-Encoding` chunk sizes greater than what fits in 64-bit unsigned integers. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-32714 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32714 https://github.com/hyperium/hyper/security/advisories/GHSA-5h46-h7hh-c6x9
rust embeds hyper version 0.12.31, therefor tracking as affected: - SUSE:SLE-15:Update/rust - SUSE:SLE-15-SP1:Update/rust
hyper was removed with version 1.46.0 (by 6654c5852f76d6b55ebdacc0d428cad5b3dbdbed) Which means SLE15-SP3 is not affected, because rust1.43 is out of support. SLE15 and SLE15-SP1 are now on 1.53.
closing