Debian DLA-3070-1 : gnutls28 - LTS security update

high Nessus Plugin ID 164081

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3070 advisory.

- A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function. (CVE-2022-2509)

- A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances. (CVE-2021-4209)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the gnutls28 packages.

For Debian 10 buster, these problems have been fixed in version 3.6.7-4+deb10u9.

Plugin Details

Severity: High

ID: 164081

File Name: debian_DLA-3070.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/11/2022

Updated: 3/21/2023

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2022-2509

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libgnutlsxx28, p-cpe:/a:debian:debian_linux:libgnutls30, p-cpe:/a:debian:debian_linux:gnutls-doc, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:libgnutls28-dev, p-cpe:/a:debian:debian_linux:libgnutls-openssl27, p-cpe:/a:debian:debian_linux:libgnutls-dane0, p-cpe:/a:debian:debian_linux:gnutls-bin

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 8/11/2022

Vulnerability Publication Date: 8/1/2022

Reference Information

CVE: CVE-2021-4209, CVE-2022-2509

Detections

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