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HistoryFeb 27, 2024 - 9:36 p.m.

[SECURITY] [DSA 5633-1] knot-resolver security update

2024-02-2721:36:15
lists.debian.org
11
knot-resolver
cve-2023-46317
debian
cve-2023-50387
denial of service
dnssec
cve-2023-50868

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

7.2 High

AI Score

Confidence

Low

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.0005 Low

EPSS

Percentile

16.1%


Debian Security Advisory DSA-5633-1 [email protected]
https://www.debian.org/security/ Moritz Muehlenhoff
February 27, 2024 https://www.debian.org/security/faq


Package : knot-resolver
CVE ID : CVE-2023-46317 CVE-2023-50387 CVE-2023-50868

It was discovered that malformed DNSSEC records within a DNS zone could
result in denial of service against Knot Resolver, a caching, DNSSEC-
validating DNS resolver.

For the stable distribution (bookworm), these problems have been fixed in
version 5.6.0-1+deb12u1.

We recommend that you upgrade your knot-resolver packages.

For the detailed security status of knot-resolver please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/knot-resolver

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

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

7.2 High

AI Score

Confidence

Low

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.0005 Low

EPSS

Percentile

16.1%