PT-2021-20504 · Nvidia · Nvidia Tlk

Frédéric Perriot · Published 2021-06-22 · Updated 2021-09-20 · CVE-2021-34391

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Trusty (affected versions not specified)

Description: The issue is related to a lack of checks in the NVIDIA TLK kernel function, allowing the exploitation of an integer overflow through a specific SMC call triggered by the user. This may lead to denial of service. The vulnerability specifically affects the tz handle trusted app smc function in the NVIDIA TLK kernel, where a lack of integer overflow checks on the req off and param ofs variables leads to memory corruption of critical kernel structures.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2021-34391

Affected Products

Nvidia Tlk

References · 7

• https://osv.dev/vulnerability/CVE-2021-34391 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34391 · Security Note
• https://nvidia.custhelp.com/app/answers/detail/a_id/5205 · Vendor Advisory
• https://t.me/cvenotify/16853 · Telegram Post
• https://t.me/cibsecurity/25630 · Telegram Post
• https://t.me/cvenotify/16714 · Telegram Post
• https://t.me/cvenotify/17788 · Telegram Post