PT-2021-21995 · Iced-X86 · Iced-X86

Published 2021-05-19 · Updated 2021-08-25 · CVE-2021-38188

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: iced-x86 versions 1.10.3 and earlier

Description: An issue was discovered in the iced-x86 crate where the Decoder::new() function uses slice.get unchecked(slice.length()) unsafely, potentially invoking undefined behavior. This may cause soundness issues in crates using the iced x86::Decoder struct.

Recommendations: For versions 1.10.3 and earlier, update to a version that includes the fix for the unsafe use of slice.get unchecked(slice.length()) in the Decoder::new() function. As a temporary workaround, consider avoiding the use of the iced x86::Decoder struct until a patched version is available.

Exploit

Fix

Weakness Enumeration

CWE-131

Related Identifiers

CVE-2021-38188

GHSA-JJX5-3F36-6927

RUSTSEC-2021-0068

Affected Products

Iced-X86

References · 12

• 🔥 https://rustsec.org/advisories/RUSTSEC-2021-0068.html · Exploit
• https://osv.dev/vulnerability/RUSTSEC-2021-0068 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-38188 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-38188 · Security Note
• https://osv.dev/vulnerability/GHSA-jjx5-3f36-6927 · Vendor Advisory
• https://github.com/icedland/iced · Note
• https://github.com/icedland/iced/commit/3c607a003e03b773108401d109167d1840487dce · Note
• https://github.com/icedland/iced/issues/168 · Note
• https://t.me/cvenotify/19824 · Telegram Post
• https://crates.io/crates/iced-x86 · Note
• https://t.me/cibsecurity/26973 · Telegram Post
• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/iced-x86/RUSTSEC-2021-0068.md · Note