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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTJmNWotM21ocS14djU4

Double free in sys-info

Affected versions of sys-info use a static, global, list to store temporary disk information while running. The function that cleans up this list, DFCleanup, assumes a single threaded environment and will try to free the same memory twice in a multithreaded environment. This results in consistent double-frees and segfaults when calling sys_info::disk_info from multiple threads at once. The issue was fixed by moving the global variable into a local scope.

Permalink: https://github.com/advisories/GHSA-2f5j-3mhq-xv58
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTJmNWotM21ocS14djU4
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 2 years ago
Updated: 11 months ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-2f5j-3mhq-xv58, CVE-2020-36434
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-36434
• https://github.com/FillZpp/sys-info-rs/issues/63
• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/sys-info/RUSTSEC-2020-0100.md
• https://rustsec.org/advisories/RUSTSEC-2020-0100.html
• https://github.com/advisories/GHSA-2f5j-3mhq-xv58

Repository: https://github.com/FillZpp/sys-info-rs
Blast Radius: 31.0

Affected Packages