SUSE SLES12 Security Update : openssl-1_0_0 (SUSE-SU-2023:1704-1)

high Nessus Plugin ID 173729

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2023:1704-1 advisory.

- A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. (CVE-2023-0464)

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/1202062

https://bugzilla.suse.com/1209624

http://www.nessus.org/u?7ebf181a

https://www.suse.com/security/cve/CVE-2023-0464

Plugin Details

Severity : High

ID : 173729

File Name : suse_SU-2023-1704-1.nasl

Version : 1.0

Type : local

Agent : unix

Published : 3/31/2023

Updated : 3/31/2023

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

Risk Information

VPR

Risk Factor : Medium

Score : 4.4

CVSS v2

Risk Factor : High

Base Score : 7.8

Temporal Score : 5.8

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

Temporal Vector : E:U/RL:OF/RC:C

CVSS Score Source : CVE-2023-0464

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 : E:U/RL:O/RC:C

Vulnerability Information

CPE : p-cpe:/a:novell:suse_linux:libopenssl-1_0_0-devel , p-cpe:/a:novell:suse_linux:libopenssl-1_0_0-devel-32bit , p-cpe:/a:novell:suse_linux:libopenssl1_0_0 , p-cpe:/a:novell:suse_linux:libopenssl1_0_0-32bit , p-cpe:/a:novell:suse_linux:libopenssl1_0_0-hmac , p-cpe:/a:novell:suse_linux:libopenssl1_0_0-hmac-32bit , p-cpe:/a:novell:suse_linux:openssl-1_0_0 , p-cpe:/a:novell:suse_linux:openssl-1_0_0-doc , cpe:/o:novell:suse_linux:12

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 : 3/30/2023

Vulnerability Publication Date : 3/22/2023

Reference Information

CVE : CVE-2023-0464

SuSE : SUSE-SU-2023:1704-1