CVE-2025-9820 (GCVE-0-2025-9820)
Vulnerability from cvelistv5
Published
2026-01-26 19:58
Modified
2026-04-13 18:42
Severity ?
4.0 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-121 - Stack-based Buffer Overflow
Summary
A flaw was found in the GnuTLS library, specifically in the gnutls_pkcs11_token_init() function that handles PKCS#11 token initialization. When a token label longer than expected is processed, the function writes past the end of a fixed-size stack buffer. This programming error can cause the application using GnuTLS to crash or, in certain conditions, be exploited for code execution. As a result, systems or applications relying on GnuTLS may be vulnerable to a denial of service or local privilege escalation attacks.
References
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:3.8.10-3.el10_1   < *
    cpe:/o:redhat:enterprise_linux:10.1
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:3.6.16-8.el8_10.5   < *
    cpe:/o:redhat:enterprise_linux:8::baseos
    cpe:/a:redhat:enterprise_linux:8::appstream
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:3.6.16-8.el8_10.5   < *
    cpe:/o:redhat:enterprise_linux:8::baseos
    cpe:/a:redhat:enterprise_linux:8::appstream
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:3.8.3-10.el9_7   < *
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:3.8.3-10.el9_7   < *
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
   Red Hat Red Hat Ceph Storage 8 Unaffected: sha256:1160569002c25d3d349bbe41b57eeffade438853d3419edca01813227440f414   < *
    cpe:/a:redhat:ceph_storage:8::el9
 Create a notification for this product.
   Red Hat Red Hat Discovery 2 Unaffected: sha256:040dadd657afdb9f0914f896a4962fd3dbf40b70c8037e4d72b6801b766c9b7d   < *
    cpe:/a:redhat:discovery:2::el9
 Create a notification for this product.
   Red Hat Red Hat Discovery 2 Unaffected: sha256:062310de4b34e278f8c7e4634def673a77d1228d493541ef1264ba4cb83b68eb   < *
    cpe:/a:redhat:discovery:2::el9
 Create a notification for this product.
   Red Hat Red Hat Insights proxy 1.5 Unaffected: sha256:325c34e2506d715975171557d40afb449c79cf6e0c41b35760977d5cafb827b8   < *
    cpe:/a:redhat:insights_proxy:1.5::el9
 Create a notification for this product.
   Red Hat Red Hat Update Infrastructure 5 Unaffected: sha256:200c27e9b396276bd505c6b41127ac5eb1d94d620172cb818ae733f2a21ac524   < *
    cpe:/a:redhat:rhui:5::el9
 Create a notification for this product.
   Red Hat Red Hat Update Infrastructure 5 Unaffected: sha256:d98fd3fe5f5f9acd0efae7db19b61b864be1eb2fbe2586a1b6be2429fa2cc7a3   < *
    cpe:/a:redhat:rhui:5::el9
 Create a notification for this product.
   Red Hat Red Hat Update Infrastructure 5 Unaffected: sha256:2c50c87906a1abebf427a70f401c409f1258cb55d2096f517db870ec991cfd7f   < *
    cpe:/a:redhat:rhui:5::el9
 Create a notification for this product.
   Red Hat Red Hat Update Infrastructure 5 Unaffected: sha256:5f1fbf66fb349a7baf066a1216d39989c3b89f18ec5108b96d9643baf4856778   < *
    cpe:/a:redhat:rhui:5::el9
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
   Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
 Create a notification for this product.
   Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
 Create a notification for this product.
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}


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