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veracodeVeracode Vulnerability DatabaseVERACODE:48212
HistoryJul 24, 2024 - 7:16 a.m.

Denial Of Service (DoS)

2024-07-2407:16:10
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
5
denial of service
libbind9.so
dnssec-signed domains
cpu resources
sig(0) signed requests

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

AI Score

6.5

Confidence

High

EPSS

0.001

Percentile

19.5%

libbind9.so is vulnerable to Denial of Service. The vulnerability is due to the handling of “KEY” Resource Records in DNSSEC-signed domains, allowing attackers to exhaust resolver CPU resources by sending a stream of SIG(0) signed requests.

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

AI Score

6.5

Confidence

High

EPSS

0.001

Percentile

19.5%