PT-2021-24333 · Unknown+1 · Open Asset Import Library+1

Published 2021-12-31 · Updated 2022-10-28 · CVE-2021-45948

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Open Asset Import Library (aka assimp) versions 5.1.0 through 5.1.1

Description: The issue is a heap-based buffer overflow in the m3d safestr function, which is called from m3d load and Assimp::M3DWrapper::M3DWrapper.

Recommendations: For versions 5.1.0 and 5.1.1, consider disabling the m3d safestr function as a temporary workaround until a patch is available. Restrict access to the m3d load and Assimp::M3DWrapper::M3DWrapper functions to minimize the risk of exploitation.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ALT-PU-2022-1058

CVE-2021-45948

Affected Products

Alt Linux

Open Asset Import Library

References · 12

• 🔥 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=34416 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2021-45948 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-45948 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-45948 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-45948 · Vendor Advisory
• https://security.gentoo.org/glsa/202210-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-45948 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-45948 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-45948 · Vendor Advisory
• https://github.com/assimp/assimp/pull/4146 · Note
• https://github.com/assimp/assimp/commit/30f17aa2064b86c0096f0ec701b9e8ea9312fef2 · Note
• https://github.com/google/oss-fuzz-vulns/blob/main/vulns/assimp/OSV-2021-775.yaml · Note