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AlmaLinux 9 : openssl (ALSA-2026:67165)

critical Nessus Plugin ID 345932

Synopsis

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

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:67165 advisory.

 * openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server (CVE-2026-14456)
 * openssl: QUIC server may trigger double free when processing INITIAL packet (CVE-2026-18798)
 * openssl: heap buffer overflow in CMS key unwrapping (CVE-2026-63072)
 * openssl: invalid pointer dereference in CMP server via crafted protectionAlg (CVE-2026-63076)
 * openssl: RPK server signature algorithm selection can dereference a missing certificate (CVE-2026-14457)
 * openssl: excessive memory use buffering DTLS records for a future epoch (CVE-2026-54874)
 * openssl: untrusted sender DN used as format string in CMP response validation (CVE-2026-63073)
 * openssl: CMP indefinite cache growth of ExtraCerts (CVE-2026-63074)
 * openssl: QUIC ACK-only packet retention can cause memory exhaustion (CVE-2026-63075)


 Bug Fix(es) and Enhancement(s):

 * openssl: HollowByte remote memory-exhaustion DoS fix may be missing [AlmaLinux 9.8.z] (JIRA:AlmaLinux-232828)

Tenable has extracted the preceding description block directly from the AlmaLinux 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://access.redhat.com/errata/RHSA-2026:67165

https://errata.almalinux.org/9/ALSA-2026-67165.html

Plugin Details

Severity: Critical

ID: 345932

File Name: alma_linux_ALSA-2026-67165.nasl

Version: 1.1

Type: Local

Published: 9/15/2026

Updated: 9/15/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.8

Percentile: 96.21

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-2026-63073

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

CPE: cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:openssl-devel, p-cpe:/a:alma:linux:openssl-libs, p-cpe:/a:alma:linux:openssl-perl, p-cpe:/a:alma:linux:openssl

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/14/2026

Vulnerability Publication Date: 8/5/2026

Reference Information

CVE: CVE-2026-14456, CVE-2026-14457, CVE-2026-18798, CVE-2026-54874, CVE-2026-63072, CVE-2026-63073, CVE-2026-63074, CVE-2026-63075, CVE-2026-63076

CWE: 134, 405, 415, 476, 770, 787

RHSA: 2026:67165