Memory leak in libsoup - CVE-2025-46420

Vulnerability identifier: #VU109937

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-46420

CWE-ID: CWE-401

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak within the soup_header_parse_quality_list() function. A remote attacker can force the application to leak memory and perform denial of service attack.

libsoup
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Manager Server
SUSE Linux Enterprise Micro for Rancher
SUSE Linux Enterprise Micro
SUSE Enterprise Storage
Anolis OS
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Basesystem Module
openSUSE Leap
openEuler
Fedora
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
libsoup-2_4-1
typelib-1_0-Soup-2_4
libsoup-2_4-1-debuginfo
libsoup-devel
libsoup-2_4-1-debuginfo-32bit
libsoup-2_4-1-32bit
libsoup-lang
libsoup-debugsource
libsoup (Red Hat package)
libsoup
libsoup-doc
libsoup2-debugsource
libsoup2-devel
libsoup2-lang
libsoup-2_4-1-32bit-debuginfo
libsoup2-devel-32bit
libsoup-2_4-1-64bit
libsoup-2_4-1-64bit-debuginfo
libsoup2-devel-64bit
libsoup-debuginfo
libsoup-help
mingw-libsoup
libsoup-3_0-0-32bit-debuginfo
libsoup-3_0-0-64bit
libsoup-devel-64bit
libsoup-3_0-0-32bit
libsoup-devel-32bit
libsoup-3_0-0-debuginfo
libsoup-3_0-0
typelib-1_0-Soup-3_0
libsoup-3_0-0-64bit-debuginfo
libsoup3-help
libsoup3
libsoup3-debuginfo
libsoup3-debugsource
libsoup3-devel
IBM Power Hardware Management Console (HMC)
IBM Cloud Pak for Multicloud Management
Red Hat OpenShift Container Platform
IBM DS8000 Hardware Management Console
System Storage DS8900F

Install updates from vendor's website.

libsoup - update to 3.6.3
IBM Power Hardware Management Console (HMC) - update to 10.3.1060.0 SP2
IBM Cloud Pak for Multicloud Management - update to 2.3 Fix Pack 12
libsoup-2_4-1 - addressed in versions 2.62.2-5.12.1, 2.68.4-150200.4.6.1, 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
typelib-1_0-Soup-2_4 - addressed in versions 2.62.2-5.12.1, 2.68.4-150200.4.6.1, 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup-2_4-1-debuginfo - addressed in versions 2.62.2-5.12.1, 2.68.4-150200.4.6.1, 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup-devel - addressed in versions 2.62.2-5.12.1, 2.68.4-150200.4.6.1, 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup-2_4-1-debuginfo-32bit - update to 2.62.2-5.12.1
libsoup-2_4-1-32bit - addressed in versions 2.62.2-5.12.1, 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup-lang - addressed in versions 2.62.2-5.12.1, 2.68.4-150200.4.6.1, 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup-debugsource - addressed in versions 2.62.2-5.12.1, 2.68.4-150200.4.6.1, 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup (Red Hat package) - addressed in versions 2.62.3-1.el8_2.4, 2.62.3-2.el8_4.4, 2.62.3-2.el8_6.4, 2.62.3-3.el8_8.4, 2.62.3-8.el8_10, 2.72.0-8.el9_0.4, 2.72.0-8.el9_2.4, 2.72.0-8.el9_4.4, 2.72.0-10.el9_6.1
libsoup - addressed in versions 2.62.3-8.0.1, 2.74.3-3
libsoup-doc - addressed in versions 2.62.3-8.0.1, 2.74.3-3
libsoup-devel - addressed in versions 2.62.3-8.0.1, 2.74.3-3
libsoup2-debugsource - addressed in versions 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup2-devel - addressed in versions 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup2-lang - addressed in versions 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup-2_4-1-32bit-debuginfo - addressed in versions 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup2-devel-32bit - addressed in versions 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup-2_4-1-64bit - addressed in versions 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup-2_4-1-64bit-debuginfo - addressed in versions 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup2-devel-64bit - addressed in versions 2.74.2-150400.3.6.1, 2.74.3-150600.4.6.1
libsoup - update to 2.74.3-9
libsoup-debuginfo - update to 2.74.3-9
libsoup-debugsource - update to 2.74.3-9
libsoup-devel - update to 2.74.3-9
libsoup-help - update to 2.74.3-9
mingw-libsoup - addressed in versions 2.74.3-12.fc41, 2.74.3-12.fc42
libsoup-3_0-0-32bit-debuginfo - addressed in versions 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup-3_0-0-64bit - addressed in versions 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup-devel-64bit - addressed in versions 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup-3_0-0-32bit - addressed in versions 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup-devel-32bit - addressed in versions 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup-3_0-0-debuginfo - addressed in versions 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup-3_0-0 - addressed in versions 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
typelib-1_0-Soup-3_0 - addressed in versions 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup-3_0-0-64bit-debuginfo - addressed in versions 3.0.4-150400.3.7.1, 3.4.4-150600.3.7.1
libsoup3-help - addressed in versions 3.4.4-17, 3.4.5-13
libsoup3 - addressed in versions 3.4.4-17, 3.4.5-13
libsoup3-debuginfo - addressed in versions 3.4.4-17, 3.4.5-13
libsoup3-debugsource - addressed in versions 3.4.4-17, 3.4.5-13
libsoup3-devel - addressed in versions 3.4.4-17, 3.4.5-13
Red Hat OpenShift Container Platform - addressed in versions 4.16.40, 4.17.29, 4.18.13
IBM DS8000 Hardware Management Console - update to 10.10.106.0 R10.1
System Storage DS8900F - update to 89.44.4.0 R9.4 SP4

• https://bugzilla.redhat.com/show_bug.cgi?id=2361963

• Multiple vulnerabilities in libsoup
• openEuler update for libsoup
• Red Hat Enterprise Linux 9 update for libsoup
• Red Hat Enterprise Linux 9 update for libsoup
• Red Hat Enterprise Linux 9 update for libsoup
• Red Hat Enterprise Linux 8 update for libsoup
• Red Hat Enterprise Linux 8 update for libsoup
• Red Hat Enterprise Linux 8 update for libsoup
• Red Hat Enterprise Linux 8 update for libsoup
• Red Hat Enterprise Linux 8 update for libsoup
• Red Hat Enterprise Linux 9 update for libsoup
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.18
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.16
• SUSE update for libsoup2
• SUSE update for libsoup
• SUSE update for libsoup2
• SUSE update for libsoup
• SUSE update for libsoup
• SUSE update for libsoup
• Anolis OS update for libsoup
• SUSE update for libsoup2
• SUSE update for libsoup
• Fedora 42 update for mingw-libsoup
• Fedora 41 update for mingw-libsoup
• Anolis OS update for libsoup
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.17
• Multiple vulnerabilities in IBM Power HMC
• Multiple vulnerabilities in IBM DS8900F and DS8A00 Hardware Management Console (HMC)
• Multiple vulnerabilities in IBM Cloud Pak for Multicloud Management
• openEuler 24.03 LTS SP3 update for libsoup3
• openEuler 24.03 LTS SP1 update for libsoup3
• openEuler 24.03 LTS update for libsoup3