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CVE-2020-13777 GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS…
Description
GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| n/a | Versions not published | |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.0 → < 3.1.5 | 3.1.5 |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.0 → < 3.1.5 | 3.1.5 |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.0 → < 3.1.5 | 3.1.5 |
References
- gnutls.org gnutls.org
- DSA-4697 www.debian.org
- FEDORA-2020-0cce3578e2 lists.fedoraproject.org
- GLSA-202006-01 security.gentoo.org
- USN-4384-1 usn.ubuntu.com
- openSUSE-SU-2020:0790 lists.opensuse.org
- FEDORA-2020-76b705bb63 lists.fedoraproject.org
- FEDORA-2020-ea11cb5ccc lists.fedoraproject.org
- FEDORA-2020-4f78f122a3 lists.fedoraproject.org
- security.netapp.com security.netapp.com
Timeline
- Published
- Last modified
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