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osvGoogleOSV:ALSA-2023:2370
HistoryMay 09, 2023 - 12:00 a.m.

Moderate: unbound security update

2023-05-0900:00:00
Google
osv.dev
15
unbound
dns resolver
security update
nrdelegation attack
resource consumption
cve-2022-3204
cvss score
almalinux
release notes

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

7.7

Confidence

High

EPSS

0.004

Percentile

73.5%

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.

Security Fix(es):

  • unbound: NRDelegation attack leads to uncontrolled resource consumption (Non-Responsive Delegation Attack) (CVE-2022-3204)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

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

7.7

Confidence

High

EPSS

0.004

Percentile

73.5%