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Vulnerability · Published Apr 24, 2025 · Assigned by redhat

CVE-2025-46420Libsoup: memory leak on soup_header_parse_quality_list() via soup-headers.c

Medium 6.5

In plain English

A medium-severity memory leak in libsoup. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.6%top 51.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in libsoup. It is vulnerable to memory leaks in the soup_header_parse_quality_list() function when parsing a quality list that contains elements with all zeroes.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8libsoup2.62.3-8.el8_10ALSA-2025:4560
AlmaLinux:9libsoup2.72.0-10.el9_6.1ALSA-2025:7436
AlmaLinux:8libsoup-devel2.62.3-8.el8_10ALSA-2025:4560
AlmaLinux:9libsoup-devel2.72.0-10.el9_6.1ALSA-2025:7436
Debian:12libsoup2.4no fix listedDEBIAN-CVE-2025-46420
Debian:13libsoup2.42.74.3-10.1DEBIAN-CVE-2025-46420
Debian:12libsoup33.2.3-0+deb12u1DEBIAN-CVE-2025-46420
Debian:13libsoup33.6.4-1DEBIAN-CVE-2025-46420
Rocky Linux:8libsoup0:2.62.3-8.el8_10RLSA-2025:4560
Ubuntu:22.04:LTSlibsoup2.42.74.2-3ubuntu0.3USN-7490-1
Ubuntu:22.04:LTSlibsoup2.42.74.2-3ubuntu0.3UBUNTU-CVE-2025-46420
Ubuntu:24.04:LTSlibsoup2.42.74.3-6ubuntu1.3USN-7490-1
Ubuntu:24.04:LTSlibsoup2.42.74.3-6ubuntu1.3UBUNTU-CVE-2025-46420
Ubuntu:24.04:LTSlibsoup33.4.4-5ubuntu0.3UBUNTU-CVE-2025-46420
Ubuntu:24.04:LTSlibsoup33.4.4-5ubuntu0.3USN-7490-3

Affected products (as reported)

VendorProductVersions
libsoup 0 – before 3.6.3
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references

Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References