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openSUSE Security Update : gnutls (openSUSE-2020-790)

high Nessus Plugin ID 137350

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Synopsis

The remote openSUSE host is missing a security update.

Description

This update for gnutls fixes the following issues :

 - CVE-2020-13777: Fixed an insecure session ticket key construction which could have made the TLS server to not bind the session ticket encryption key with a value supplied by the application until the initial key rotation, allowing an attacker to bypass authentication in TLS 1.3 and recover previous conversations in TLS 1.2 (bsc#1172506).

 - Fixed an improper handling of certificate chain with cross-signed intermediate CA certificates (bsc#1172461).

This update was imported from the SUSE:SLE-15:Update update project.

Solution

Update the affected gnutls packages.

See Also

https://bugzilla.opensuse.org/show_bug.cgi?id=1172461

https://bugzilla.opensuse.org/show_bug.cgi?id=1172506

Plugin Details

Severity: High

ID: 137350

File Name: openSUSE-2020-790.nasl

Version: 1.3

Type: local

Agent: unix

Published: 6/11/2020

Updated: 3/7/2024

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2020-13777

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:gnutls, p-cpe:/a:novell:opensuse:gnutls-debuginfo, p-cpe:/a:novell:opensuse:gnutls-debugsource, p-cpe:/a:novell:opensuse:gnutls-guile, p-cpe:/a:novell:opensuse:gnutls-guile-debuginfo, p-cpe:/a:novell:opensuse:libgnutls-dane-devel, p-cpe:/a:novell:opensuse:libgnutls-dane0, p-cpe:/a:novell:opensuse:libgnutls-dane0-debuginfo, p-cpe:/a:novell:opensuse:libgnutls-devel, p-cpe:/a:novell:opensuse:libgnutls-devel-32bit, p-cpe:/a:novell:opensuse:libgnutls30, p-cpe:/a:novell:opensuse:libgnutls30-32bit, p-cpe:/a:novell:opensuse:libgnutls30-32bit-debuginfo, p-cpe:/a:novell:opensuse:libgnutls30-debuginfo, p-cpe:/a:novell:opensuse:libgnutls30-hmac, p-cpe:/a:novell:opensuse:libgnutls30-hmac-32bit, p-cpe:/a:novell:opensuse:libgnutlsxx-devel, p-cpe:/a:novell:opensuse:libgnutlsxx28, p-cpe:/a:novell:opensuse:libgnutlsxx28-debuginfo, cpe:/o:novell:opensuse:15.1

Required KB Items: Host/local_checks_enabled, Host/SuSE/release, Host/SuSE/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 6/10/2020

Vulnerability Publication Date: 6/4/2020

Reference Information

CVE: CVE-2020-13777