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

Medium Nessus Plugin ID 117476

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: 1.1

Type: local

Agent: unix

Published: 2018/09/13

Modified: 2018/09/13

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5

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

CVSSv3

Base Score: 7.5

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

Vulnerability Information

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

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

Patch Publication Date: 2018/09/12

Reference Information

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