PT-2021-17718 · Truetype · Truetype

Published 2021-02-17 · Updated 2021-08-25 · CVE-2021-28030

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: truetype crate versions prior to 0.30.1

Description: An issue in the truetype crate allows attackers to read the contents of uninitialized memory locations via a user-provided Read operation within Tape::take bytes(). This can result in safe Read implementations reading from the uninitialized buffer, leading to undefined behavior.

Recommendations: For versions prior to 0.30.1, update to version 0.30.1 or later to resolve the issue. As a temporary workaround, consider avoiding the use of Tape::take bytes() with user-provided Read operations until a patch is applied.

Fix

Use of Uninitialized Resource

Weakness Enumeration

CWE-908

Related Identifiers

CVE-2021-28030

GHSA-V7Q4-97X4-4QW2

RUSTSEC-2021-0029

Affected Products

Truetype

References · 9

• https://rustsec.org/advisories/RUSTSEC-2021-0029.html · Patch
• https://osv.dev/vulnerability/RUSTSEC-2021-0029 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-28030 · Security Note
• https://osv.dev/vulnerability/GHSA-v7q4-97x4-4qw2 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-28030 · Vendor Advisory
• https://github.com/bodoni/truetype/issues/11 · Note
• https://github.com/bodoni/truetype · Note
• https://t.me/cibsecurity/24502 · Telegram Post
• https://crates.io/crates/truetype · Note