OpenSSL 1.0.2 < 1.0.2e Multiple Vulnerabilities
medium Nessus Plugin ID 87222
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Synopsis
The remote service is affected by multiple vulnerabilities.Description
According to its banner, the remote host is running a version of OpenSSL 1.0.2 prior to 1.0.2e. It is, therefore, affected by the following vulnerabilities :- A flaw exists in the ssl3_get_key_exchange() function in file s3_clnt.c when handling a ServerKeyExchange message for an anonymous DH ciphersuite with the value of 'p' set to 0. A attacker can exploit this, by causing a segmentation fault, to crash an application linked against the library, resulting in a denial of service.
(CVE-2015-1794)
- A carry propagating flaw exists in the x86_64 Montgomery squaring implementation that may cause the BN_mod_exp() function to produce incorrect results. An attacker can exploit this to obtain sensitive information regarding private keys. (CVE-2015-3193)
- A NULL pointer dereference flaw exists in file rsa_ameth.c when handling ASN.1 signatures that use the RSA PSS algorithm but are missing a mask generation function parameter. A remote attacker can exploit this to cause the signature verification routine to crash, leading to a denial of service. (CVE-2015-3194)
- A flaw exists in the ASN1_TFLG_COMBINE implementation in file tasn_dec.c related to handling malformed X509_ATTRIBUTE structures. A remote attacker can exploit this to cause a memory leak by triggering a decoding failure in a PKCS#7 or CMS application, resulting in a denial of service. (CVE-2015-3195)
Solution
Upgrade to OpenSSL version 1.0.2e or later.See Also
Plugin Details
Severity: Medium
ID: 87222
File Name: openssl_1_0_2e.nasl
Version: 1.14
Type: remote
Family: Web Servers
Published: 12/7/2015
Updated: 11/20/2019
Dependencies: openssl_version.nasl
Risk Information
CVSS Score Source: CVE-2015-3193
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
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: 12/3/2015
Vulnerability Publication Date: 12/3/2015
Reference Information
CVE: CVE-2015-1794, CVE-2015-3193, CVE-2015-3194, CVE-2015-3195