Gnutls: gnutls: denial of service via excessive resource consumption during certificate verification

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Summary

CVECVE-2025-14831
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-02-09 15:16:09 UTC
Updated2026-04-22 19:16:59 UTC
DescriptionA flaw was found in GnuTLS. This vulnerability allows a denial of service (DoS) by excessive CPU (Central Processing Unit) and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names (SANs).

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

EPSS: 0.000590000 probability, percentile 0.183210000 (date 2026-04-21)

Problem Types: CWE-407 | CWE-407 Inefficient Algorithmic Complexity

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.1CNACVSS5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 10 unaffected 0:3.8.10-3.el10_1 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support unaffected 0:3.8.9-9.el10_0.17 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:3.6.16-8.el8_10.5 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:3.6.16-8.el8_10.5 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:3.8.3-10.el9_7 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:3.8.3-10.el9_7 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions unaffected 0:3.7.6-21.el9_2.5 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support unaffected 0:3.8.3-4.el9_4.5 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support unaffected 0:3.8.3-6.el9_6.3 * rpm Not specified
CNA Red Hat Red Hat AI Inference Server 3.2 unaffected sha256:54616c9f3e4d27120504b0b2020432ef3ff85286a50de7be842f05df0cfcd69e * rpm Not specified
CNA Red Hat Red Hat AI Inference Server 3.3 unaffected sha256:0ec114881d9dcd28a5dbbb2ec0ea1301ad87d5ae133121ce8167ef29d19802cc * rpm Not specified
CNA Red Hat Red Hat AI Inference Server 3.3 unaffected sha256:813ba7ccd1696b44deb90d9e6cd8af114bdb47781eae7f27246a81fba062a892 * rpm Not specified
CNA Red Hat Red Hat AI Inference Server 3.3 unaffected sha256:be6d568f28044533e4ad80f0856407c359e2eaf31a6b89cada433e6575d2300e * rpm Not specified
CNA Red Hat Red Hat Ceph Storage 8 unaffected sha256:1160569002c25d3d349bbe41b57eeffade438853d3419edca01813227440f414 * rpm Not specified
CNA Red Hat Red Hat Discovery 2 unaffected sha256:040dadd657afdb9f0914f896a4962fd3dbf40b70c8037e4d72b6801b766c9b7d * rpm Not specified
CNA Red Hat Red Hat Discovery 2 unaffected sha256:062310de4b34e278f8c7e4634def673a77d1228d493541ef1264ba4cb83b68eb * rpm Not specified
CNA Red Hat Red Hat Hardened Images unaffected 3.8.12-1.1.hum1 * rpm Not specified
CNA Red Hat Red Hat Insights Proxy 1.5 unaffected sha256:325c34e2506d715975171557d40afb449c79cf6e0c41b35760977d5cafb827b8 * rpm Not specified
CNA Red Hat Red Hat Update Infrastructure 5 unaffected sha256:200c27e9b396276bd505c6b41127ac5eb1d94d620172cb818ae733f2a21ac524 * rpm Not specified
CNA Red Hat Red Hat Update Infrastructure 5 unaffected sha256:d98fd3fe5f5f9acd0efae7db19b61b864be1eb2fbe2586a1b6be2429fa2cc7a3 * rpm Not specified
CNA Red Hat Red Hat Update Infrastructure 5 unaffected sha256:2c50c87906a1abebf427a70f401c409f1258cb55d2096f517db870ec991cfd7f * rpm Not specified
CNA Red Hat Red Hat Update Infrastructure 5 unaffected sha256:5f1fbf66fb349a7baf066a1216d39989c3b89f18ec5108b96d9643baf4856778 * rpm 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 OpenShift Container Platform 4 Not specified Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2026:6618 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:5606 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:8747 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:6738 [email protected] access.redhat.com
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com
access.redhat.com/errata/RHSA-2026:4188 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:7329 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:8748 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:6630 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:6737 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:4943 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:4655 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:3477 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:7335 [email protected] access.redhat.com
gitlab.com/gnutls/gnutls/-/issues/1773 [email protected] gitlab.com
access.redhat.com/security/cve/CVE-2025-14831 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:8746 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:7477 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:5585 [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
CNA2025-12-17T14:48:30.222ZReported to Red Hat.
CNA2026-02-09T14:26:34.939ZMade public.
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