RockyLinux 8 : container-tools:rhel8 (RLSA-2026:63163)

medium Nessus Plugin ID 342832

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:63163 advisory.

* net/mail: golang: net/mail: Denial of Service via pathological email address parsing (CVE-2026-42499)

* encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818)

* net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860)

* net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853)

* html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858)

* crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862)

* encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859)

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.

Plugin Details

Severity: Medium

ID: 342832

File Name: rocky_linux_RLSA-2026-63163.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 9/4/2026

Updated: 9/4/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.51

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-56858

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:aardvark-dns, p-cpe:/a:rocky:linux:cockpit-podman, p-cpe:/a:rocky:linux:conmon-debuginfo, p-cpe:/a:rocky:linux:conmon-debugsource, p-cpe:/a:rocky:linux:conmon, p-cpe:/a:rocky:linux:container-selinux, p-cpe:/a:rocky:linux:containers-common, p-cpe:/a:rocky:linux:crit, p-cpe:/a:rocky:linux:criu-debuginfo, p-cpe:/a:rocky:linux:criu-debugsource, p-cpe:/a:rocky:linux:criu-devel, p-cpe:/a:rocky:linux:criu-libs-debuginfo, p-cpe:/a:rocky:linux:criu-libs, p-cpe:/a:rocky:linux:criu, p-cpe:/a:rocky:linux:fuse-overlayfs-debuginfo, p-cpe:/a:rocky:linux:fuse-overlayfs-debugsource, p-cpe:/a:rocky:linux:fuse-overlayfs, p-cpe:/a:rocky:linux:libslirp-debuginfo, p-cpe:/a:rocky:linux:libslirp-debugsource, p-cpe:/a:rocky:linux:libslirp-devel, p-cpe:/a:rocky:linux:libslirp, p-cpe:/a:rocky:linux:netavark, p-cpe:/a:rocky:linux:python3-criu, p-cpe:/a:rocky:linux:python3-podman, p-cpe:/a:rocky:linux:slirp4netns-debuginfo, p-cpe:/a:rocky:linux:slirp4netns-debugsource, p-cpe:/a:rocky:linux:slirp4netns, p-cpe:/a:rocky:linux:toolbox-debuginfo, p-cpe:/a:rocky:linux:toolbox-debugsource, p-cpe:/a:rocky:linux:toolbox-tests, p-cpe:/a:rocky:linux:toolbox, p-cpe:/a:rocky:linux:udica

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/4/2026

Vulnerability Publication Date: 5/7/2026

Reference Information

CVE: CVE-2026-33818, CVE-2026-42499, CVE-2026-56853, CVE-2026-56858, CVE-2026-56859, CVE-2026-56860, CVE-2026-56862

IAVB: 2026-B-0120, 2026-B-0234

Detections

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