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CVE-2020-11501 GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS
Description
GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.
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
- GLSA-202004-06 security.gentoo.org
- gitlab.com gitlab.com
- gitlab.com gitlab.com
- www.gnutls.org www.gnutls.org
- DSA-4652 www.debian.org
- openSUSE-SU-2020:0501 lists.opensuse.org
- security.netapp.com security.netapp.com
- USN-4322-1 usn.ubuntu.com
- FEDORA-2020-f90fb78f70 lists.fedoraproject.org
- FEDORA-2020-d14280a6e8 lists.fedoraproject.org
Timeline
- Published
- Last modified
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