CVE-2021-36754

2021-07-3014:15:18

Debian Security Bug Tracker

security-tracker.debian.org

powerdns

authoritative server

vulnerability

crash

out-of-bounds exception

query

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.026

Percentile

90.3%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12allpdns< 4.7.3-2pdns_4.7.3-2_all.deb
Debian11allpdns< 4.4.1-1pdns_4.4.1-1_all.deb
Debian999allpdns< 4.9.1-3pdns_4.9.1-3_all.deb
Debian13allpdns< 4.9.1-3pdns_4.9.1-3_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	pdns	< 4.7.3-2	pdns_4.7.3-2_all.deb
Debian	11	all	pdns	< 4.4.1-1	pdns_4.4.1-1_all.deb
Debian	999	all	pdns	< 4.9.1-3	pdns_4.9.1-3_all.deb
Debian	13	all	pdns	< 4.9.1-3	pdns_4.9.1-3_all.deb