CUCM Connector Frontend Security Patch Release Notes and Vulnerabilities Resolved

Release Notes: CUCM Connector Frontend Security Patch

Release component

Docker Image

Change type

Security Patch

Date

Severity

Critical

Overview

A security audit of the CUCM Connector Frontend Docker image was performed using the Grype vulnerability scanner. The audit identified 155 vulnerabilities, including 6 Critical and 30 High severity findings, in the base image nginx:1.25-alpine due to outdated Alpine Linux system packages.

This release resolves the majority of identified vulnerabilities by upgrading the base image and applying all available package-level security patches.

Changes Made

#

Change

Details

1

Base image upgraded

nginx:1.25-alpinenginx:stable-alpine

2

System packages patched

Added apk upgrade --no-cache to the Dockerfile build step.

Vulnerabilities Resolved

The following packages have been fully patched. All associated CVEs are resolved in this release.

OpenSSL (libcrypto3 / libssl3)

Previously installed: 3.1.4-r6

CVE

Severity

Description

CVE-2024-5535

Critical

SSL_select_next_proto buffer overread

CVE-2024-6119

High

Denial of service in certificate name checking

CVE-2024-4741

High

Use-after-free with SSL_free_buffers

CVE-2024-9143

Medium

Out-of-bounds memory access in EC operations

CVE-2024-4603

Medium

Excessive time in DSA key and parameter validation

CVE-2024-13176

Medium

Timing side-channel in ECDSA signature computation

CVE-2025-9230

High

Unspecified OpenSSL vulnerability

CVE-2025-9232

Medium

Unspecified OpenSSL vulnerability

curl / libcurl

Previously installed: 8.5.0-r0

CVE

Severity

Description

CVE-2025-0665

High

Double-free in CURLOPT_COOKIELIST processing

CVE-2025-0725

High

Integer overflow in content decoding

CVE-2025-5399

High

Unspecified curl vulnerability

CVE-2024-2398

High

HTTP/2 push headers memory leak

CVE-2024-6197

High

ASN.1 freeing of certificate data

CVE-2024-4741

High

Use-after-free in OpenSSL via curl

CVE-2024-9681

Medium

HSTS subdomain bypass via IDNA

CVE-2024-6874

Medium

Heap buffer over-read in curl URL parsing

CVE-2024-7264

Medium

ASN.1 date parsing out-of-bounds read

CVE-2024-8096

Medium

OCSP stapling bypass

CVE-2024-0853

Medium

OCSP verification bypass

CVE-2024-2379

Medium

QUIC certificate check bypass

CVE-2024-2466

Medium

TLS certificate verification issue

CVE-2024-2004

Low

Usage of disabled protocol

CVE-2024-11053

Low

Credentials leak in netrc parsing

CVE-2025-0167

Low

Credentials leak in netrc parsing

CVE-2025-9086

High

Unspecified curl vulnerability

libexpat

Previously installed: 2.6.2-r0

CVE

Severity

Description

CVE-2024-45492

Critical

Integer overflow in function nextScaffoldPart

CVE-2024-45491

Critical

Integer overflow in dtdCopy

CVE-2024-45490

High

Negative length parsing in XML_ParseBuffer

CVE-2024-8176

High

Stack overflow via deeply nested XML

CVE-2024-50602

Medium

XML_ParseBuffer crash on absent XML version

CVE-2025-59375

High

Unspecified libexpat vulnerability

libxml2

Previously installed: 2.11.7-r0

CVE

Severity

Description

CVE-2024-34459

High

Buffer over-read in xmlHTMLPrintFileContext

CVE-2024-56171

Critical

Use-after-free in xmlSchemaIDCFillNodeTables

CVE-2025-24928

High

Stack overflow in xmlSnprintfElements

CVE-2025-27113

High

NULL pointer dereference in xmlPatMatch

CVE-2025-32414

High

Out-of-bounds read in Python bindings

CVE-2025-32415

High

Heap buffer overflow in xmlSchemaParseAttrDecls

busybox / busybox-binsh / ssl_client

Previously installed: 1.36.1-r15

CVE

Severity

Description

CVE-2023-42363

Medium

Use-after-free in awk

CVE-2023-42364

Medium

Use-after-free in awk

CVE-2023-42365

Medium

Use-after-free in awk

CVE-2023-42366

Medium

Heap buffer overflow in awk

CVE-2025-46394

Low

Unspecified busybox vulnerability

CVE-2024-58251

Low

Unspecified busybox vulnerability

musl / musl-utils

Previously installed: 1.2.4_git20230717-r4

CVE

Severity

Description

CVE-2025-26519

High

Integer overflow in musl libc

CVE-2026-40200

High

Unspecified musl vulnerability

CVE-2026-6042

Medium

Unspecified musl vulnerability

libxslt

Previously installed: 1.1.39-r0

CVE

Severity

Description

CVE-2024-55549

High

Use-after-free in xsltGetInheritedNsList

CVE-2025-24855

High

Use-after-free in xsltApplyTemplates

xz-libs

Previously installed: 5.4.5-r0

CVE

Severity

Description

CVE-2025-31115

High

Heap use-after-free in multithreaded decoder