openSUSE 15 Security Update : libdnf (openSUSE-SU-2021:2685-1)

high Nessus Plugin ID 152562

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:2685-1 advisory.

- A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability. (CVE-2021-20271)

- A flaw was found in the RPM package in the read functionality. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package or compromise an RPM repository, to cause RPM database corruption. The highest threat from this vulnerability is to data integrity. This flaw affects RPM versions before 4.17.0-alpha. (CVE-2021-3421)

- A flaw was found in libdnf's signature verification functionality in versions before 0.60.1. This flaw allows an attacker to achieve code execution if they can alter the header information of an RPM package and then trick a user or system into installing it. The highest risk of this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3445)

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

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1183779

http://www.nessus.org/u?4fbf0c45

https://www.suse.com/security/cve/CVE-2021-20271

https://www.suse.com/security/cve/CVE-2021-3421

https://www.suse.com/security/cve/CVE-2021-3445

Plugin Details

Severity: High

ID: 152562

File Name: openSUSE-2021-2685.nasl

Version: 1.3

Type: local

Agent: unix

Published: 8/14/2021

Updated: 2/25/2022

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 3.8

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

CVSS Score Source: CVE-2021-3445

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:15.3, p-cpe:/a:novell:opensuse:python3-hawkey, p-cpe:/a:novell:opensuse:python3-libdnf, p-cpe:/a:novell:opensuse:hawkey-man, p-cpe:/a:novell:opensuse:libdnf-repo-config-zypp, p-cpe:/a:novell:opensuse:libdnf-devel, p-cpe:/a:novell:opensuse:libdnf2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/13/2021

Vulnerability Publication Date: 3/22/2021

Reference Information

CVE: CVE-2021-20271, CVE-2021-3421, CVE-2021-3445