CVE-2020-11501
Published: 3 April 2020
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.
Priority
CVSS 3 base score: 7.4
Status
| Package | Release | Status |
|---|---|---|
|
gnutls28 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(3.5.18-1ubuntu1.3)
|
| eoan |
Released
(3.6.9-5ubuntu1.1)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(3.6.13-2)
|
|
| xenial |
Not vulnerable
(3.4.10-4ubuntu1.7)
|
|
|
Patches: upstream: https://gitlab.com/gnutls/gnutls/-/commit/c01011c2d8533dbbbe754e49e256c109cb848d0d |
||