GnuTLS before 2.9.10 does not verify the activation and expiration dates of CA certificates, which allows man-in-the-middle attackers to spoof servers via a certificate issued by a CA certificate that is (1) not yet valid or (2) no longer valid.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| F5 Big Ip | — | — | Apr 9, 2019 | Aug 14, 2015 |
| Oracle_linux | — | Upgrade gnutlsUpgrade gnutls-utilsUpgrade gnutls-develUpgrade gnutls-guile | Oct 16, 2024 | Aug 14, 2015 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Mar 14, 2010 |
| Suse | — | Upgrade libgnutls-extra-develUpgrade libgnutls26-x86Upgrade libgnutls26Upgrade libgnutls26-32bitUpgrade libgnutls-develUpgrade gnutlsUpgrade libgnutls-extra26 | Dec 18, 2015 | Apr 7, 2015 |
| Ubuntu | — | Upgrade libgnutls26Upgrade libgnutls-deb0-28 | Nov 8, 2024 | Aug 14, 2015 |
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