CVE-2021-28879: Fedoraproject Fedora

Critical severity, CVSS 9.8. EPSS: 2.4% chance of exploitation in the next 30 days.

In the standard library in Rust before 1.52.0, the Zip implementation can report an incorrect size due to an integer overflow. This bug can lead to a buffer overflow when a consumed Zip iterator is used again.

Affected products

• Fedoraproject Fedora: version 32 only; version 33 only; version 34 only
• Rust-Lang Rust: before 1.52.0 (fixed in 1.52.0)

Published 2021-04-11. Last modified 2026-06-17.