Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTlmNXItdnFtNS1tMzQy

Use of Uninitialized Resource in ms3d

Affected versions of this crate passes an uninitialized buffer to a user-provided Read implementation. Arbitrary Read implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.

The flaw was fixed in commit 599313b by zero-initializing the buffer (via self.buf.resize(len, 0)) before passing it to Read.

Permalink: https://github.com/advisories/GHSA-9f5r-vqm5-m342
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTlmNXItdnFtNS1tMzQy
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 3 years ago
Updated: over 1 year ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Percentage: 0.0032
EPSS Percentile: 0.70862

Identifiers: GHSA-9f5r-vqm5-m342, CVE-2021-26952
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-26952
• https://github.com/andrewhickman/ms3d/issues/1
• https://rustsec.org/advisories/RUSTSEC-2021-0016.html
• https://github.com/andrewhickman/ms3d/commit/599313b
• https://github.com/advisories/GHSA-9f5r-vqm5-m342

Repository: https://github.com/andrewhickman/ms3d
Blast Radius: 1.0

Affected Packages