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

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Summary

CVECVE-2025-46420
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-04-24 13:15:45 UTC
Updated2026-06-25 05:16:43 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.004870000 probability, percentile 0.382130000 (date 2026-06-25)

Problem Types: CWE-401 | CWE-401 Missing Release of Memory after Effective Lifetime

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.1CNACVSS6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:2.62.3-8.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:2.62.3-8.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support unaffected 0:2.62.3-1.el8_2.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support unaffected 0:2.62.3-2.el8_4.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service unaffected 0:2.62.3-2.el8_4.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Update Services For SAP Solutions unaffected 0:2.62.3-2.el8_4.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support unaffected 0:2.62.3-2.el8_6.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service unaffected 0:2.62.3-2.el8_6.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions unaffected 0:2.62.3-2.el8_6.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support unaffected 0:2.62.3-3.el8_8.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:2.72.0-10.el9_6.1 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions unaffected 0:2.72.0-8.el9_0.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support unaffected 0:2.72.0-8.el9_2.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support unaffected 0:2.72.0-8.el9_4.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat In-Vehicle Operating System 1 Not specified Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2025:4439 [email protected] access.redhat.com
gitlab.gnome.org/GNOME/libsoup/-/issues/438 [email protected] gitlab.gnome.org
access.redhat.com/security/cve/CVE-2025-46420 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4624 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4538 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4508 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4609 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4440 [email protected] access.redhat.com
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com
access.redhat.com/errata/RHSA-2025:7436 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4560 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4568 [email protected] access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2025-04-24T01:33:03.009ZReported to Red Hat.
CNA2025-04-24T00:00:00.000ZMade public.

Workarounds

CNA: Currently, no mitigation is available for this vulnerability.

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