A heap-buffer-overread vulnerability was found in GnuTLS in how it handles the Certificate Transparency (CT) Signed Certificate Timestamp (SCT) extension during X.509 certificate parsing. This flaw allows a malicious user to create a certificate containing a malformed SCT extension (OID 1.3.6.1.4.1.11129.2.4.2) that contains sensitive data. This issue leads to the exposure of confidential information when GnuTLS verifies certificates from certain websites when the certificate (SCT) is not checked correctly.
CVSS Details
- CVSS 3.1 Base Score: 5.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-gnutlsalma-upgrade-gnutls-c++alma-upgrade-gnutls-danealma-upgrade-gnutls-develalma-upgrade-gnutls-utils | Sep 30, 2025 | Sep 17, 2025 | |
| Alpine Linux | alpine-linux-upgrade-gnutls | Dec 5, 2025 | Jul 10, 2025 | |
| Amazon_linux_2023 | amazon-linux-2023-upgrade-gnutlsamazon-linux-2023-upgrade-gnutls-camazon-linux-2023-upgrade-gnutls-c-debuginfoamazon-linux-2023-upgrade-gnutls-daneamazon-linux-2023-upgrade-gnutls-dane-debuginfoamazon-linux-2023-upgrade-gnutls-debuginfoamazon-linux-2023-upgrade-gnutls-debugsourceamazon-linux-2023-upgrade-gnutls-develamazon-linux-2023-upgrade-gnutls-utilsamazon-linux-2023-upgrade-gnutls-utils-debuginfo | Aug 19, 2025 | Jul 10, 2025 | |
| Debian | debian-upgrade-gnutls28 | Jul 11, 2025 | Jul 11, 2025 | |
| Dell Powerstore Dsa2025429 | dell-powerstoreos-upgrade-latest | Dec 3, 2025 | Dec 2, 2025 | |
| Dell Powerstore Dsa2026039 | dell-powerstoreos-upgrade-latest | Jan 13, 2026 | Jan 6, 2026 | |
| Freebsd | freebsd-upgrade-package-gnutls | Jul 15, 2025 | Jul 14, 2025 | |
| Gentoo Linux | gentoo-linux-upgrade-net-libs-gnutls | Sep 18, 2025 | Sep 17, 2025 | |
| Nutanix Ahv | nutanix-ahv-upgrade-latest | Jun 5, 2026 | Dec 15, 2025 | |
| Oracle_linux | — | oracle-linux-upgrade-gnutlsoracle-linux-upgrade-gnutls-coracle-linux-upgrade-gnutls-daneoracle-linux-upgrade-gnutls-develoracle-linux-upgrade-gnutls-fipsoracle-linux-upgrade-gnutls-utils | Sep 22, 2025 | Jul 10, 2025 |
| Redhat_linux | redhat-upgrade-gnutlsredhat-upgrade-gnutls-credhat-upgrade-gnutls-c-debuginforedhat-upgrade-gnutls-daneredhat-upgrade-gnutls-dane-debuginforedhat-upgrade-gnutls-debuginforedhat-upgrade-gnutls-debugsourceredhat-upgrade-gnutls-develredhat-upgrade-gnutls-fipsredhat-upgrade-gnutls-utilsredhat-upgrade-gnutls-utils-debuginfo | Jul 11, 2025 | Jul 10, 2025 | |
| Rocky_linux | rocky-upgrade-gnutlsrocky-upgrade-gnutls-c++rocky-upgrade-gnutls-c++-debuginforocky-upgrade-gnutls-danerocky-upgrade-gnutls-dane-debuginforocky-upgrade-gnutls-debuginforocky-upgrade-gnutls-debugsourcerocky-upgrade-gnutls-develrocky-upgrade-gnutls-fipsrocky-upgrade-gnutls-utilsrocky-upgrade-gnutls-utils-debuginfo | Feb 5, 2026 | Oct 10, 2025 | |
| Suse | — | suse-upgrade-gnutlssuse-upgrade-gnutls-guilesuse-upgrade-libgnutls-develsuse-upgrade-libgnutls-devel-32bitsuse-upgrade-libgnutls30suse-upgrade-libgnutls30-32bitsuse-upgrade-libgnutls30-hmacsuse-upgrade-libgnutls30-hmac-32bitsuse-upgrade-libgnutlsxx-develsuse-upgrade-libgnutlsxx28suse-upgrade-libgnutlsxx30 | Dec 5, 2025 | Sep 20, 2025 |
| Ubuntu | ubuntu-upgrade-libgnutls30ubuntu-upgrade-libgnutls30t64 | Jul 14, 2025 | Jul 10, 2025 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jul 24, 2025 | Jul 10, 2025 |
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