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AUSCERT External Security Bulletin Redistribution
ESB-2024.2583
unbound security update
26 April 2024
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AusCERT Security Bulletin Summary
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Product: unbound
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2022-30699 CVE-2022-30698 CVE-2022-3204
Original Bulletin:
https://access.redhat.com/errata/RHSA-2024:2045
Comment: CVSS (Max): 7.5 CVE-2022-3204 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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Red Hat Security Advisory
Synopsis: Moderate: unbound security update
Advisory ID: RHSA-2024:2045
Product: Red Hat Enterprise Linux AppStream EUS (v.8.6)
Advisory URL: https://access.redhat.com/errata/RHSA-2024:2045
Issue date: 2024-04-25
CVE Names: CVE-2022-3204 CVE-2022-30698 CVE-2022-30699
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1. Summary:
An update for unbound is now available for Red Hat Enterprise Linux 8.6 Extended
Update Support.
Red Hat Product Security has rated this update as having a security impact of
Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives
a detailed severity rating, is available for each vulnerability from the CVE
link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream EUS (v.8.6) - aarch64, ppc64le, x86_64, i686,
s390x
3. Description:
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)
* unbound: novel ghost domain attack that allows attackers to trigger continued
resolvability of malicious domain names (CVE-2022-30699)
* unbound: novel ghost domain attack that allows attackers to trigger continued
resolvability of malicious domain names (CVE-2022-30698)
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.
4. Solution:
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
2128947 - CVE-2022-3204 - unbound: NRDelegation attack leads to uncontrolled
resource consumption (Non-Responsive Delegation Attack)
2116725 - CVE-2022-30698 - unbound: novel ghost domain attack that allows
attackers to trigger continued resolvability of malicious domain names
2116729 - CVE-2022-30699 - unbound: novel ghost domain attack that allows
attackers to trigger continued resolvability of malicious domain names
6. Package List:
Red Hat Enterprise Linux AppStream EUS (v.8.6)
aarch64:
python3-unbound-0:1.7.3-17.el8_6.5.aarch64.rpm
python3-unbound-debuginfo-0:1.7.3-17.el8_6.5.aarch64.rpm
unbound-0:1.7.3-17.el8_6.5.aarch64.rpm
unbound-debuginfo-0:1.7.3-17.el8_6.5.aarch64.rpm
unbound-debugsource-0:1.7.3-17.el8_6.5.aarch64.rpm
unbound-devel-0:1.7.3-17.el8_6.5.aarch64.rpm
unbound-libs-0:1.7.3-17.el8_6.5.aarch64.rpm
unbound-libs-debuginfo-0:1.7.3-17.el8_6.5.aarch64.rpm
ppc64le:
python3-unbound-0:1.7.3-17.el8_6.5.ppc64le.rpm
python3-unbound-debuginfo-0:1.7.3-17.el8_6.5.ppc64le.rpm
unbound-0:1.7.3-17.el8_6.5.ppc64le.rpm
unbound-debuginfo-0:1.7.3-17.el8_6.5.ppc64le.rpm
unbound-debugsource-0:1.7.3-17.el8_6.5.ppc64le.rpm
unbound-devel-0:1.7.3-17.el8_6.5.ppc64le.rpm
unbound-libs-0:1.7.3-17.el8_6.5.ppc64le.rpm
unbound-libs-debuginfo-0:1.7.3-17.el8_6.5.ppc64le.rpm
s390x:
python3-unbound-0:1.7.3-17.el8_6.5.s390x.rpm
python3-unbound-debuginfo-0:1.7.3-17.el8_6.5.s390x.rpm
unbound-0:1.7.3-17.el8_6.5.s390x.rpm
unbound-debuginfo-0:1.7.3-17.el8_6.5.s390x.rpm
unbound-debugsource-0:1.7.3-17.el8_6.5.s390x.rpm
unbound-devel-0:1.7.3-17.el8_6.5.s390x.rpm
unbound-libs-0:1.7.3-17.el8_6.5.s390x.rpm
unbound-libs-debuginfo-0:1.7.3-17.el8_6.5.s390x.rpm
x86_64:
python3-unbound-0:1.7.3-17.el8_6.5.x86_64.rpm
python3-unbound-debuginfo-0:1.7.3-17.el8_6.5.x86_64.rpm
unbound-0:1.7.3-17.el8_6.5.x86_64.rpm
unbound-debuginfo-0:1.7.3-17.el8_6.5.x86_64.rpm
unbound-debugsource-0:1.7.3-17.el8_6.5.x86_64.rpm
unbound-devel-0:1.7.3-17.el8_6.5.x86_64.rpm
unbound-libs-0:1.7.3-17.el8_6.5.x86_64.rpm
unbound-libs-debuginfo-0:1.7.3-17.el8_6.5.x86_64.rpm
i686:
python3-unbound-debuginfo-0:1.7.3-17.el8_6.5.i686.rpm
unbound-debuginfo-0:1.7.3-17.el8_6.5.i686.rpm
unbound-debugsource-0:1.7.3-17.el8_6.5.i686.rpm
unbound-devel-0:1.7.3-17.el8_6.5.i686.rpm
unbound-libs-0:1.7.3-17.el8_6.5.i686.rpm
unbound-libs-debuginfo-0:1.7.3-17.el8_6.5.i686.rpm
Source:
unbound-0:1.7.3-17.el8_6.5.src.rpm
7. References:
https://access.redhat.com/security/cve/CVE-2022-3204
https://access.redhat.com/security/cve/CVE-2022-30698
https://access.redhat.com/security/cve/CVE-2022-30699
https://access.redhat.com/security/updates/classification/#moderate
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