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 | — | Upgrade gnutls-utilsUpgrade gnutls-daneUpgrade gnutls-develUpgrade gnutlsUpgrade gnutls-c++ | Sep 30, 2025 | Sep 17, 2025 |
| Alpine Linux | — | Upgrade gnutls | Dec 5, 2025 | Jul 10, 2025 |
| Amazon_linux_2023 | — | Upgrade gnutls-c++Upgrade gnutls-c++-debuginfoUpgrade gnutls-daneUpgrade gnutls-develUpgrade gnutls-debuginfoUpgrade gnutls-utilsUpgrade gnutls-utils-debuginfoUpgrade gnutls-dane-debuginfoUpgrade gnutls-debugsourceUpgrade gnutls | Aug 19, 2025 | Jul 10, 2025 |
| Debian | — | Upgrade gnutls28 | Jul 11, 2025 | Jul 11, 2025 |
| Dell Powerstore Dsa2025429 | — | Upgrade Dell PowerStoreOS to the latest version | Dec 3, 2025 | Dec 2, 2025 |
| Dell Powerstore Dsa2026039 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Jan 6, 2026 |
| Freebsd | — | Upgrade gnutls | Jul 15, 2025 | Jul 14, 2025 |
| Gentoo Linux | — | Upgrade net-libs/gnutls. | Sep 18, 2025 | Sep 17, 2025 |
| Nutanix Ahv | — | Upgrade Nutanix AHV to the latest version | Jun 5, 2026 | Dec 15, 2025 |
| Oracle_linux | — | Upgrade gnutlsUpgrade gnutls-c++Upgrade gnutls-utilsUpgrade gnutls-daneUpgrade gnutls-fipsUpgrade gnutls-devel | Sep 22, 2025 | Jul 10, 2025 |
| Redhat_linux | — | Upgrade gnutls-daneUpgrade gnutls-c++Upgrade gnutls-fipsUpgrade gnutls-develUpgrade gnutls-debugsourceUpgrade gnutls-utils-debuginfoUpgrade gnutls-dane-debuginfoUpgrade gnutls-debuginfoUpgrade gnutlsUpgrade gnutls-c++-debuginfoNo solution existsUpgrade gnutls-utils | Jul 11, 2025 | Jul 10, 2025 |
| Rocky_linux | — | Upgrade gnutls-c++Upgrade gnutls-utils-debuginfoUpgrade gnutls-c++-debuginfoUpgrade gnutls-develUpgrade gnutls-dane-debuginfoUpgrade gnutlsUpgrade gnutls-fipsUpgrade gnutls-debuginfoUpgrade gnutls-utilsUpgrade gnutls-debugsourceUpgrade gnutls-dane | Feb 5, 2026 | Oct 10, 2025 |
| Suse | — | Upgrade libgnutls30-hmacUpgrade libgnutlsxx-develUpgrade libgnutlsxx30Upgrade libgnutls-develUpgrade libgnutls30-hmac-32bitUpgrade libgnutlsxx28Upgrade libgnutls-devel-32bitUpgrade gnutlsUpgrade gnutls-guileUpgrade libgnutls30Upgrade libgnutls30-32bit | Dec 5, 2025 | Sep 20, 2025 |
| Ubuntu | — | Upgrade libgnutls30t64Upgrade libgnutls30 | Jul 14, 2025 | Jul 10, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 24, 2025 | Jul 10, 2025 |
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