PT-2022-2319 · Lenovo · Lenovo Notebook

Published 2022-04-18 · Updated 2022-05-06 · CVE-2021-3971

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:L/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Lenovo Notebook devices (affected versions not specified)

Description A potential issue in the BIOS of some Lenovo Notebook devices could allow an attacker with elevated privileges to modify the firmware protection region by changing an NVRAM variable, potentially enabling the placement of malicious code in the SPI flash memory.

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

Weakness Enumeration

CWE-489

CWE-264

Related Identifiers

BDU:2022-02509

CVE-2021-3971

Affected Products

Lenovo Notebook

References · 12

• https://support.lenovo.com/us/en/product_security/LEN-73440 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-3971 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3971 · Security Note
• https://bdu.fstec.ru/vul/2022-02509 · Security Note
• https://t.me/cibsecurity/41344 · Telegram Post
• https://t.me/ckure/11233 · Telegram Post
• https://t.me/true_secator/2866 · Telegram Post
• https://support.lenovo.com/ru/en/product_security/len-73440 · Note
• https://t.me/nekaspersky/2140 · Telegram Post
• https://securitylab.ru/news/531212.php · Note
• https://t.me/pentestingnews/22033 · Telegram Post
• https://t.me/echeloneyes/197 · Telegram Post