PT-2021-7416 · Realtek · Realtek Had+1

Realtek · Published 2021-06-21 · Updated 2021-09-20 · CVE-2021-32537

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Realtek HAD (affected versions not specified) Realtek High-Definition Audio (HDA) Drivers (affected versions not specified)

Description The issue is related to a driver crash vulnerability in Realtek HAD, which allows local attackers to send a special string to the kernel driver, causing the system to crash due to unexpected commands. Additionally, there is a buffer overflow vulnerability in the RTKVHD64.sys driver of Realtek High-Definition Audio (HDA) Drivers, which can be exploited to cause a denial of service.

Recommendations For Realtek HAD, at the moment, there is no information about a newer version that contains a fix for this vulnerability. For Realtek High-Definition Audio (HDA) Drivers, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2022-06072

CVE-2021-32537

Affected Products

Realtek Had

Realtek High-Definition Audio (Hda) Drivers

References · 10

• 🔥 https://github.com/0vercl0k/CVE-2021-32537 · Exploit
• 🔥 http://packetstormsecurity.com/files/163498/Realtek-RTKVHD64.sys-Out-Of-Bounds-Access.html · Exploit
• https://osv.dev/vulnerability/CVE-2021-32537 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32537 · Security Note
• https://bdu.fstec.ru/vul/2022-06072 · Security Note
• https://catalog.update.microsoft.com/Search.aspx?q=Realtek%20Semiconductor%20Corp%20MEDIA%202022 · Note
• https://twcert.org.tw/tw/cp-132-4813-7b578-1.html · Note
• https://support.lenovo.com/us/en/product_security/ps500001-lenovo-product-security-advisories · Note
• https://t.me/cybersecuritytechnologies/3691 · Telegram Post
• https://t.me/defcon_news/81052 · Telegram Post