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.
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Mon, 26 Jan 2026 21:15:00 +0000
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ssvc
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Mon, 26 Jan 2026 20:30:00 +0000
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Mon, 26 Jan 2026 20:15:00 +0000
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| Description | 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. | |
| Title | Gnutls: stack-based buffer overflow in gnutls_pkcs11_token_init() function | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat openshift |
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| Weaknesses | CWE-121 | |
| CPEs | cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat openshift |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-01-26T19:58:32.886Z
Updated: 2026-01-26T20:12:19.249Z
Reserved: 2025-09-02T07:22:32.478Z
Link: CVE-2025-9820
Updated: 2026-01-26T20:08:12.926Z
Status : Received
Published: 2026-01-26T20:16:09.370
Modified: 2026-01-26T20:16:09.370
Link: CVE-2025-9820
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