PT-2021-6968 · Microsoft · Windows Dns Server+1

Published 2021-07-13 · Updated 2023-12-28 · CVE-2021-34499

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows DNS Server (affected versions not specified)

Description The issue is related to errors in processing DNS requests, which can be exploited by a remote attacker to cause a denial of service using a specially crafted DNS request. This can affect the system, allowing attackers to impact its operation.

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

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2022-02754

CVE-2021-34499

Affected Products

Windows

Windows Dns Server

References · 8

• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34499 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34499 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34499 · Security Note
• https://bdu.fstec.ru/vul/2022-02754 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34499 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34499 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-34499 · Vendor Advisory
• https://t.me/cvenotify/17873 · Telegram Post