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openSUSE Security Update : compat-openssl098 (openSUSE-2018-997)

medium Nessus Plugin ID 117476

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Synopsis

The remote openSUSE host is missing a security update.

Description

This update for compat-openssl098 fixes the following security issues :

 - CVE-2018-0732: During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server could have sent a very large prime value to the client. This caused the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack (bsc#1097158)

 - Blinding enhancements for ECDSA and DSA (bsc#1097624, bsc#1098592)

 - CVE-2018-0737: The RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could have recovered the private key (bsc#1089039)

 - CVE-2018-0739: Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could have resulted in DoS (bsc#1087102).

This update was imported from the SUSE:SLE-12:Update update project.

Solution

Update the affected compat-openssl098 packages.

See Also

https://bugzilla.opensuse.org/show_bug.cgi?id=1087102

https://bugzilla.opensuse.org/show_bug.cgi?id=1089039

https://bugzilla.opensuse.org/show_bug.cgi?id=1097158

https://bugzilla.opensuse.org/show_bug.cgi?id=1097624

https://bugzilla.opensuse.org/show_bug.cgi?id=1098592

Plugin Details

Severity: Medium

ID: 117476

File Name: openSUSE-2018-997.nasl

Version: 1.4

Type: local

Agent: unix

Published: 9/13/2018

Updated: 8/8/2024

Supported Sensors: 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-2018-0737

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:libopenssl0_9_8, p-cpe:/a:novell:opensuse:libopenssl0_9_8-debuginfo-32bit, p-cpe:/a:novell:opensuse:libopenssl0_9_8-debuginfo, p-cpe:/a:novell:opensuse:compat-openssl098-debugsource, p-cpe:/a:novell:opensuse:libopenssl0_9_8-32bit, cpe:/o:novell:opensuse:42.3

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: 9/12/2018

Reference Information

CVE: CVE-2018-0732, CVE-2018-0737, CVE-2018-0739