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SUSE SLES11 Security Update : openssl (SUSE-SU-2019:14174-1)

medium Nessus Plugin ID 150664

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Synopsis

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

Description

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2019:14174-1 advisory.

 - Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths. However, in some cases, it is possible to construct a group using explicit parameters (instead of using a named curve). In those cases it is possible that such a group does not have the cofactor present. This can occur even where all the parameters match a known named curve. If such a curve is used then OpenSSL falls back to non-side channel resistant code paths which may result in full key recovery during an ECDSA signature operation. In order to be vulnerable an attacker would have to have the ability to time the creation of a large number of signatures where explicit parameters with no co-factor present are in use by an application using libcrypto. For the avoidance of doubt libssl is not vulnerable because explicit parameters are never used. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s). (CVE-2019-1547)

 - In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s). (CVE-2019-1563)

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/1150003

https://bugzilla.suse.com/1150250

http://www.nessus.org/u?e8df511a

https://www.suse.com/security/cve/CVE-2019-1547

https://www.suse.com/security/cve/CVE-2019-1563

Plugin Details

Severity: Medium

ID: 150664

File Name: suse_SU-2019-14174-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 6/10/2021

Updated: 5/9/2022

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2019-1563

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

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

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

CVSS Score Source: CVE-2019-1547

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:openssl, p-cpe:/a:novell:suse_linux:libopenssl0_9_8-hmac, p-cpe:/a:novell:suse_linux:libopenssl0_9_8-32bit, cpe:/o:novell:suse_linux:11, p-cpe:/a:novell:suse_linux:libopenssl0_9_8-hmac-32bit, p-cpe:/a:novell:suse_linux:libopenssl0_9_8, p-cpe:/a:novell:suse_linux:openssl-doc

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: 9/19/2019

Vulnerability Publication Date: 7/30/2019

Reference Information

CVE: CVE-2019-1547, CVE-2019-1563

IAVA: 2019-A-0303-S

SuSE: SUSE-SU-2019:14174-1