Lucene search

K
nvd[email protected]NVD:CVE-2023-32067
HistoryMay 25, 2023 - 11:15 p.m.

CVE-2023-32067

2023-05-2523:15:09
CWE-400
web.nvd.nist.gov
c-ares
asynchronous resolver
denial of service
udp packet
version 1.19.1

7.5 High

CVSS3

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

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

45.4%

c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service. If a target resolver sends a query, the attacker forges a malformed UDP packet with a length of 0 and returns them to the target resolver. The target resolver erroneously interprets the 0 length as a graceful shutdown of the connection. This issue has been patched in version 1.19.1.

Affected configurations

NVD
Node
c-ares_projectc-aresRange<1.19.1
Node
fedoraprojectfedoraMatch37
OR
fedoraprojectfedoraMatch38
Node
debiandebian_linuxMatch10.0
OR
debiandebian_linuxMatch11.0

7.5 High

CVSS3

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

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

45.4%