CVE-2025-46420

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

State: Published
Severity: 6.5 Medium
Published: Apr 24, 2025
Updated: Jul 25, 2026
Reserved: Apr 24, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	redhat

Weaknesses

CWE-401 Missing Release of Memory after Effective Lifetime

Affected Products

Product	Versions
libsoup	before 3.6.3Affected
Red Hat Enterprise Linux 8Red Hat	0:2.62.3-8.el8_10 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:2.62.3-8.el8_10 and laterNot affected
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat	0:2.62.3-1.el8_2.4 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	0:2.62.3-2.el8_4.4 and laterNot affected
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRed Hat	0:2.62.3-2.el8_4.4 and laterNot affected
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRed Hat	0:2.62.3-2.el8_4.4 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat	0:2.62.3-2.el8_6.4 and laterNot affected
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat	0:2.62.3-2.el8_6.4 and laterNot affected
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat	0:2.62.3-2.el8_6.4 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat	0:2.62.3-3.el8_8.4 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:2.72.0-10.el9_6.1 and laterNot affected
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat	0:2.72.0-8.el9_0.4 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	0:2.72.0-8.el9_2.4 and laterNot affected
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat	0:2.72.0-8.el9_4.4 and laterNot affected
Red Hat Enterprise Linux 10Red Hat
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat

References

RHSA-2025:4439vendor-advisory
RHSA-2025:4440vendor-advisory
RHSA-2025:4508vendor-advisory
RHSA-2025:4538vendor-advisory
RHSA-2025:4560vendor-advisory
RHSA-2025:4568vendor-advisory
RHSA-2025:4609vendor-advisory
RHSA-2025:4624vendor-advisory
RHSA-2025:7436vendor-advisory
https://access.redhat.com/security/cve/CVE-2025-46420vdb-entry
RHBZ#2361963issue-tracking
https://gitlab.gnome.org/GNOME/libsoup/-/issues/438

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