Rocky Linux 8 [CIQ] Security Update: python3-unbound / python3-unbound-debuginfo / unbound / etc Multiple Vulnerabilities (crlsa-2021_1853)

critical Nessus Plugin ID 357491

Synopsis

The Rocky Linux host is missing one or more security updates.

Description

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2021_1853 advisory.

* unbound: integer overflow in the regional allocator via regional_alloc (CVE-2019-25032)

* unbound: integer overflow in sldns_str2wire_dname_buf_origin can lead to an out-of-bounds write (CVE-2019-25034)

* unbound: out-of-bounds write in sldns_bget_token_par (CVE-2019-25035)

* unbound: assertion failure and denial of service in synth_cname (CVE-2019-25036)

* unbound: assertion failure and denial of service in dname_pkt_copy via an invalid packet (CVE-2019-25037)

* unbound: integer overflow in a size calculation in dnscrypt/dnscrypt.c (CVE-2019-25038)

* unbound: integer overflow in a size calculation in respip/respip.c (CVE-2019-25039)

* unbound: infinite loop via a compressed name in dname_pkt_copy (CVE-2019-25040)

* unbound: assertion failure via a compressed name in dname_pkt_copy (CVE-2019-25041)

* unbound: out-of-bounds write via a compressed name in rdata_copy (CVE-2019-25042)

* unbound: symbolic link traversal when writing PID file (CVE-2020-28935)

Tenable has extracted the preceding description block directly from the CIQ 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 based on the guidance in CIQ advisory crlsa-2021_1853.

Plugin Details

Severity: Critical

ID: 357491

File Name: ciq_rocky_linux_8_crlsa-2021_1853.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.12

Vendor

Vendor Severity: Unknown

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2019-25042

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

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/OS/extended-third-party

Exploit Ease: No known exploits are available

Patch Publication Date: 5/18/2021

Vulnerability Publication Date: 12/7/2020

Reference Information

CVE: CVE-2019-25032, CVE-2019-25034, CVE-2019-25035, CVE-2019-25036, CVE-2019-25037, CVE-2019-25038, CVE-2019-25039, CVE-2019-25040, CVE-2019-25041, CVE-2019-25042, CVE-2020-28935

Detections

Analytics