Vulnerability Name:

CVE-2021-36754 (CCN-206377)

Assigned:2021-07-26
Published:2021-07-26
Updated:2021-08-07
Summary:PowerDNS Authoritative Server 4.5.0 before 4.5.1 allows anybody to crash the process by sending a specific query (QTYPE 65535) that causes an out-of-bounds exception.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-119
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-36754

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20210726 security advisory 2021-01 for PowerDNS Authoritative Server 4.5.0

Source: MISC
Type: Vendor Advisory
https://doc.powerdns.com/authoritative/security-advisories/index.html

Source: CONFIRM
Type: Vendor Advisory
https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2021-01.html

Source: XF
Type: UNKNOWN
powerdns-cve202136754-dos(206377)

Source: CCN
Type: oss-sec Mailing List, Mon, 26 Jul 2021 14:47:04 +0200
security advisory 2021-01 for PowerDNS Authoritative Server 4.5.0

Source: CCN
Type: PowerDNS Web site
PowerDNS

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-36754

Vulnerable Configuration:Configuration 1:
  • cpe:/a:powerdns:authoritative_server:*:*:*:*:*:*:*:* (Version >= 4.5.0 and < 4.5.1)

    • Configuration CCN 1:
  • cpe:/a:powerdns:authoritative_server:4.5.0:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:113102
    P
    		pdns-4.5.1-1.5 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106537
    P
    		pdns-4.5.1-1.5 on GA media (Moderate)
    2021-10-01
    BACK
    powerdns authoritative server *
    powerdns authoritative server 4.5.0 -