| VID |
22707 |
| Severity |
30 |
| Port |
80, ... |
| Protocol |
TCP |
| Class |
WWW |
| Detailed Description |
According to its banner, the remote web server uses a version of OpenSSL which is 1.0.2 prior to 1.0.2e. Such versions may be 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)
* References:
https://www.openssl.org/news/secadv/20151203.txt
https://mta.openssl.org/pipermail/openssl-commits/2015-August/001540.html
* Platforms Affected:
OpenSSL 1.0.2 before 1.0.2e
Linux Any version
Unix Any version
Microsoft Windows Any version |
| Recommendation |
Upgrade to the latest version of OpenSSL (1.0.2e or later), available from the OpenSSL Web site at http://www.openssl.org/ |
| Related URL |
CVE-2015-1794,CVE-2015-3193,CVE-2015-3194,CVE-2015-3195 (CVE) |
| Related URL |
(SecurityFocus) |
| Related URL |
(ISS) |
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