OpenSSL < 0.9.8k Multiple Vulnerabilities

medium Nessus Plugin ID 17763
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote server is affected by multiple vulnerabilities.

Description

According to its banner, the remote server is running a version of OpenSSL prior to 0.9.8k. It is, therefore, affected by multiple vulnerabilities :

- A denial of service vulnerability exists in the ASN1_STRING_print_ex() function due to improper string handling. A remote attacker can exploit this to cause an invalid memory access and application crash.
(CVE-2009-0590)

- A flaw exists in the CMS_verify() function due to improper handling of errors associated with malformed signed attributes. A remote attacker can exploit this to repudiate a signature that originally appeared to be valid but was actually invalid. (CVE-2009-0591)

- A denial of service vulnerability exists due to improper handling of malformed ASN.1 structures. A remote attacker can exploit this to cause an invalid memory access and application crash. (CVE-2009-0789)

- A memory leak exists in the SSL_free() function in ssl_lib.c. A remote attacker can exploit this to exhaust memory resources, resulting in a denial of service condition. (CVE-2009-5146)

Solution

Upgrade to OpenSSL version 0.9.8k or later.

See Also

https://www.openssl.org/news/secadv/20090325.txt

Plugin Details

Severity: Medium

ID: 17763

File Name: openssl_0_9_8k.nasl

Version: 1.13

Type: remote

Family: Web Servers

Published: 1/4/2012

Updated: 7/16/2018

Dependencies: openssl_version.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

Vulnerability Information

CPE: cpe:/a:openssl:openssl

Required KB Items: openssl/port

Exploit Ease: No known exploits are available

Patch Publication Date: 3/25/2009

Vulnerability Publication Date: 3/25/2009

Reference Information

CVE: CVE-2009-0590, CVE-2009-0591, CVE-2009-0789, CVE-2009-5146

BID: 34256, 73121

CWE: 119, 189, 287