CVE-2020-13777: gnutls from 3.6.0 (inclusive), before 3.6.14 (exclusive); +7 more affected products

Affected technology

gnutls · from 3.6.0 (inclusive), before 3.6.14 (exclusive)
gnu

fedora · 31
fedoraproject

fedora · 32
fedoraproject

ubuntu linux · 19.10
canonical

ubuntu linux · 20.04
canonical

debian linux · 10.0
debian

n/a · n/a
Vendor not specified by the source

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

Description’s affected range: before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2

Component: Not specified by the source

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 7.4/10) rates confidentiality and integrity impact as high; availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.