Detections
Analytics
OpenSSL 0.9.8 < 0.9.8zf Multiple Vulnerabilities
medium Nessus Plugin ID 82030
Language:
Synopsis
The remote service is affected by multiple vulnerabilities.Description
According to its banner, the remote web server uses a version of OpenSSL 0.9.8 prior to 0.9.8zf. The OpenSSL library is, therefore, affected by the following vulnerabilities :- A use-after-free condition exists in the d2i_ECPrivateKey() function due to improper processing of malformed EC private key files during import. A remote attacker can exploit this to dereference or free already freed memory, resulting in a denial of service or other unspecified impact. (CVE-2015-0209)
- An invalid read flaw exists in the ASN1_TYPE_cmp() function due to improperly performed boolean-type comparisons. A remote attacker can exploit this, via a crafted X.509 certificate to an endpoint that uses the certificate-verification feature, to cause an invalid read operation, resulting in a denial of service.
(CVE-2015-0286)
- A flaw exists in the ASN1_item_ex_d2i() function due to a failure to reinitialize 'CHOICE' and 'ADB' data structures when reusing a structure in ASN.1 parsing.
This allows a remote attacker to cause an invalid write operation and memory corruption, resulting in a denial of service. (CVE-2015-0287)
- A NULL pointer dereference flaw exists in the X509_to_X509_REQ() function due to improper processing of certificate keys. This allows a remote attacker, via a crafted X.509 certificate, to cause a denial of service. (CVE-2015-0288)
- A NULL pointer dereference flaw exists in the PKCS#7 parsing code due to incorrect handling of missing outer ContentInfo. This allows a remote attacker, using an application that processes arbitrary PKCS#7 data and providing malformed data with ASN.1 encoding, to cause a denial of service. (CVE-2015-0289)
- A flaw exists in servers that both support SSLv2 and enable export cipher suites due to improper implementation of SSLv2. A remote attacker can exploit this, via a crafted CLIENT-MASTER-KEY message, to cause a denial of service. (CVE-2015-0293)
- A key disclosure vulnerability exists in the SSLv2 implementation in the get_client_master_key() function due to the acceptance of a nonzero CLIENT-MASTER-KEY CLEAR-KEY-LENGTH value for an arbitrary cipher. A man-in-the-middle attacker can exploit this to determine the MASTER-KEY value and decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle.
(CVE-2016-0703)
- An information disclosure vulnerability exists in the SSLv2 implementation in the get_client_master_key() function due to incorrectly overwriting MASTER-KEY bytes during use of export cipher suites. A remote attacker can exploit this to create a Bleichenbacher oracle.
(CVE-2016-0704)
Solution
Upgrade to OpenSSL 0.9.8zf or later.See Also
Plugin Details
Severity: Medium
ID: 82030
File Name: openssl_0_9_8zf.nasl
Version: 1.17
Type: combined
Agent: windows, macosx, unix
Family: Web Servers
Published: 3/24/2015
Updated: 8/21/2023
Supported Sensors: Nessus Agent
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2015-0209
Vulnerability Information
CPE: cpe:/a:openssl:openssl
Required KB Items: installed_sw/OpenSSL
Exploit Ease: No known exploits are available
Patch Publication Date: 3/19/2015
Vulnerability Publication Date: 3/19/2015
Reference Information
CVE: CVE-2015-0209, CVE-2015-0286, CVE-2015-0287, CVE-2015-0288, CVE-2015-0289, CVE-2015-0293, CVE-2016-0703, CVE-2016-0704