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CVE-2021-28877

TrustedRandomAaccess specialization composes incorrectly for nested iter::Zips

Issued
Package
std
Type
Vulnerability
Categories
Details
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28877
Patched
  • >=1.51.0
Unaffected
  • <1.11.0

Description

In the standard library in Rust before 1.51.0, the Zip implementation calls __iterator_get_unchecked() for the same index more than once when nested. This bug can lead to a memory safety violation due to an unmet safety requirement for the TrustedRandomAccess trait.