PT-2022-10019 · Mediatek · Mediatek Linkit Sdk

David Atch + 2 · Published 2022-01-24 · Updated 2022-01-28 · CVE-2021-30636

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 MediaTek LinkIt SDK versions prior to 4.6.1

Description The issue is related to a possible memory corruption due to an integer overflow during mishandled memory allocation by pvPortCalloc and pvPortRealloc. This can lead to potential security risks.

Recommendations For versions prior to 4.6.1, update to version 4.6.1 or later to resolve the issue. As a temporary workaround, consider restricting the use of pvPortCalloc and pvPortRealloc functions until a patch is available.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2021-30636

Affected Products

Mediatek Linkit Sdk

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-30636 · Security Note
• https://osv.dev/vulnerability/CVE-2021-30636 · Vendor Advisory
• https://cisa.gov/uscert/ics/advisories/icsa-21-119-04 · Note
• https://t.me/cvenotify/25744 · Telegram Post