PT-2023-5745 · Mediatek · Nvram

Published 2023-08-07 · Updated 2023-08-09 · CVE-2023-20790

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

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

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

Description The issue is related to a missing bounds check in nvram, which could lead to a possible out of bounds write. This may result in local information disclosure, requiring System execution privileges for exploitation. No user interaction is needed for exploitation. The problem is associated with insufficient input validation in the Nvram component of the MediaTek firmware.

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

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

Related Identifiers

BDU:2023-06417

CVE-2023-20790

Affected Products

Nvram

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2023-20790 · Security Note
• https://osv.dev/vulnerability/CVE-2023-20790 · Vendor Advisory
• https://corp.mediatek.com/product-security-bulletin/August-2023 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-06417 · Security Note
• https://vuldb.com/ru/?id.236246 · Note
• https://t.me/cvenotify/55893 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2023080746 · Note
• https://t.me/cibsecurity/67864 · Telegram Post