Detections
Analytics
RockyLinux 9 : unbound (RLSA-2026:24369)
critical Nessus Plugin ID 320613
Synopsis
The remote RockyLinux host is missing one or more security updates.Description
The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:24369 advisory.* unbound: Heap overflow and crash with multiple nsid, cookie, padding EDNS options (CVE-2026-42944)
* unbound: Unbound DNSSEC Validator Denial of Service via Incorrect Write Offset Counter in Chase-Reply Messages (CVE-2026-42959)
* unbound: Unbound DNSSEC Validator Use-After-Free via Deep Copy Pointer Overwrite Leading to DoS and Possible Remote Code Execution (CVE-2026-33278)
Tenable has extracted the preceding description block directly from the RockyLinux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
https://errata.rockylinux.org/RLSA-2026:24369
https://bugzilla.redhat.com/show_bug.cgi?id=2479774
Plugin Details
Severity: Critical
ID: 320613
File Name: rocky_linux_RLSA-2026-24369.nasl
Version: 1.1
Type: Local
Published: 6/11/2026
Updated: 6/11/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-33278
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Critical
Base Score: 10
Threat Score: 9.1
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Vulnerability Information
CPE: p-cpe:/a:rocky:linux:unbound, p-cpe:/a:rocky:linux:python3-unbound, p-cpe:/a:rocky:linux:python3-unbound-debuginfo, p-cpe:/a:rocky:linux:unbound-libs-debuginfo, p-cpe:/a:rocky:linux:unbound-devel, p-cpe:/a:rocky:linux:unbound-libs, p-cpe:/a:rocky:linux:unbound-debuginfo, p-cpe:/a:rocky:linux:unbound-dracut, cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:unbound-debugsource
Required KB Items: Host/local_checks_enabled, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 6/11/2026
Vulnerability Publication Date: 5/20/2026