Gnutls: null pointer dereference in _gnutls_figure_common_ciphersuite()
Summary
| CVE | CVE-2025-6395 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-07-10 16:15:25 UTC |
| Updated | 2026-04-23 18:16:22 UTC |
| Description | A NULL pointer dereference flaw was found in the GnuTLS software in _gnutls_figure_common_ciphersuite(). |
Risk And Classification
Primary CVSS: v3.1 6.5 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS: 0.000730000 probability, percentile 0.220820000 (date 2026-04-23)
Problem Types: CWE-476 | CWE-476 NULL Pointer Dereference
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H |
| 3.1 | CNA | CVSS | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
LowAvailability
HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Red Hat Enterprise Linux 10 | unaffected 0:3.8.9-9.el10_0.14 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8 | unaffected 0:3.6.16-8.el8_10.4 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8 | unaffected 0:3.6.16-8.el8_10.4 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:3.8.3-6.el9_6.2 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:3.8.3-6.el9_6.2 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions | unaffected 0:3.7.6-21.el9_2.4 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | unaffected 0:3.8.3-4.el9_4.4 * rpm | Not specified |
| CNA | Red Hat | Red Hat Ceph Storage 7 | unaffected sha256:4d2f9dc5b2b33ee1c77bbfabcbbb9f4d94d343b04c4de2e4f8b3b81a1f0fd2fe * rpm | Not specified |
| CNA | Red Hat | Red Hat Discovery 2 | unaffected sha256:435ba9959b793d46a63a74c343bb8c3ff68350496afec12cc5e894dfc40b7648 * rpm | Not specified |
| CNA | Red Hat | Red Hat Insights Proxy 1.5 | unaffected sha256:4ca38b33efec0d2dd17a8fd822a7c18281810676ceabb0c1db90953cb91cd5ea * 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
| Reference | Source | Link | Tags |
|---|---|---|---|
| lists.debian.org/debian-lts-announce/2025/08/msg00005.html | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | |
| access.redhat.com/errata/RHSA-2025:22529 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:16115 | [email protected] | access.redhat.com | |
| www.openwall.com/lists/oss-security/2025/07/11/3 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| access.redhat.com/errata/RHSA-2025:17415 | [email protected] | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | |
| access.redhat.com/security/cve/CVE-2025-6395 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:17361 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:16116 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:17181 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:17348 | [email protected] | access.redhat.com | |
| gitlab.com/gnutls/gnutls/-/issues/1718 | [email protected] | gitlab.com | |
| access.redhat.com/errata/RHSA-2025:19088 | [email protected] | access.redhat.com | |
| lists.gnupg.org/pipermail/gnutls-help/2025-July/004883.html | [email protected] | lists.gnupg.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2025-07-07T09:30:13.037Z | Reported to Red Hat. |
| CNA | 2025-07-10T07:56:53.029Z | Made public. |
Workarounds
CNA: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
There are currently no legacy QID mappings associated with this CVE.