PT-2020-17526 · Rust · Stack Crate

Published 2020-09-03 · Updated 2021-08-25 · CVE-2020-35894

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions obstack crate versions prior to 0.1.4

Description The issue is related to the obstack crate generating unaligned references for types that require a large alignment. This can lead to problems when these references are used, potentially causing errors or crashes. No information is provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

Recommendations For versions prior to 0.1.4, update to version 0.1.4 or later to resolve the issue. As a temporary workaround, consider avoiding the use of types that require large alignment with the obstack crate until a patch is available.

Fix

Weakness Enumeration

CWE-706

Related Identifiers

CVE-2020-35894

GHSA-85J6-F8J6-Q26X

RUSTSEC-2020-0040

Affected Products

Stack Crate

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2020-35894 · Security Note
• https://osv.dev/vulnerability/RUSTSEC-2020-0040 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-85j6-f8j6-q26x · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-35894 · Vendor Advisory
• https://github.com/petertodd/rust-obstack/issues/4 · Note
• https://github.com/petertodd/rust-obstack · Note
• https://rustsec.org/advisories/RUSTSEC-2020-0040.html · Note
• https://t.me/cvenotify/8016 · Telegram Post
• https://crates.io/crates/obstack · Note