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Vulnerability DatabaseCVE-2021-29934
CVE-2021-29934:
Rust vulnerability analysis and mitigation
Overview
An issue was discovered in PartialReader in the uu_od crate before 0.0.4 for Rust. Attackers can read the contents of uninitialized memory locations via a user-provided Read operation (RUSTSEC Advisory, NVD).
Technical details
The vulnerability exists in the PartialReader::read implementation where an uninitialized buffer is passed to a user-provided Read instance. This can result in safe Read implementations reading from the uninitialized buffer, leading to undefined behavior. The issue has a CVSS v3.1 base score of 7.3 HIGH with vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L (RUSTSEC Advisory).
Impact
The vulnerability allows attackers to potentially read uninitialized memory contents, which could expose sensitive information. The CVSS scoring indicates low impact on confidentiality, integrity and availability of the system (RUSTSEC Advisory).
Mitigation and workarounds
The vulnerability was fixed in version 0.0.4 of the uu_od crate by zero-initializing the passed buffer in commit 39d62c6. Users should upgrade to version 0.0.4 or later to address this issue (RUSTSEC Advisory).
Additional resources
Source: This report was generated using AI
Related Rust vulnerabilities:
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