CVE-2021-28876

MEDIUM

Rust < 1.52.0 - Improper Exception Handling

Title source: rule

Description

In the standard library in Rust before 1.52.0, the Zip implementation has a panic safety issue. It calls __iterator_get_unchecked() more than once for the same index when the underlying iterator panics (in certain conditions). This bug could lead to a memory safety violation due to an unmet safety requirement for the TrustedRandomAccess trait.

References (6)

[Exploit, Issue Tracking, Third Party Advisory] https://github.com/rust-lang/rust/issues/81740

[Patch, Third Party Advisory] https://github.com/rust-lang/rust/pull/81741

[Third Party Advisory] https://security.gentoo.org/glsa/202210-09

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CZ337CM4GFJLRDFVQCGC7J25V65JXOG5/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFUO3URYCO73D2Q4WYJBWAMJWGGVXQO4/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZG65GUW6Z2CYOQHF7T3TB5CZKIX6ZJE/

Scores

CVSS v3 5.3

EPSS 0.0042

EPSS Percentile 61.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Classification

CWE

CWE-755

Status published

Affected Products (4)

rust-lang/rust < 1.52.0

fedoraproject/fedora

fedoraproject/fedora

fedoraproject/fedora

Timeline

Published Apr 11, 2021

Tracked Since Feb 18, 2026