| VID |
22679 |
| Severity |
30 |
| Port |
80, ... |
| Protocol |
TCP |
| Class |
WWW |
| Detailed Description |
According to its banner, the remote web server uses a version of OpenSSL older than 0.9.8zg. Such versions may be affected by the following vulnerabilities :
- A denial of service vulnerability exists when processing an ECParameters structure due to an infinite loop that occurs when a specified curve is over a malformed binary polynomial field. A remote attacker can exploit this to perform a denial of service against any system that processes public keys, certificate requests, or certificates. This includes TLS clients and TLS servers with client authentication enabled. (CVE-2015-1788)
- A denial of service vulnerability exists due to improper validation of the content and length of the ASN1_TIME string by the X509_cmp_time() function. A remote attacker can exploit this, via a malformed certificate and CRLs of various sizes, to cause a segmentation fault, resulting in a denial of service condition. TLS clients that verify CRLs are affected. TLS clients and servers with client authentication enabled may be affected if they use custom verification callbacks. (CVE-2015-1789)
- A NULL pointer dereference flaw exists in the PKCS#7 parsing code due to incorrect handling of missing inner 'EncryptedContent'. This allows a remote attacker, via specially crafted ASN.1-encoded PKCS#7 blobs with missing content, to cause a denial of service condition or other potential unspecified impacts. (CVE-2015-1790)
- A double-free error exists due to a race condition that occurs when a NewSessionTicket is received by a multi-threaded client when attempting to reuse a previous ticket. (CVE-2015-1791)
- A denial of service vulnerability exists in the CMS code due to an infinite loop that occurs when verifying a signedData message. A remote attacker can exploit this to cause a denial of service condition. (CVE-2015-1792)
* References:
https://www.openssl.org/news/secadv_20150611.txt
* Platforms Affected:
OpenSSL 0.9.8 before 0.9.8zg |
| Recommendation |
Upgrade to the latest version of OpenSSL (0.9.8zg or later), available from the OpenSSL Web site at http://www.openssl.org/ |
| Related URL |
CVE-2015-1788,CVE-2015-1789,CVE-2015-1790,CVE-2015-1791,CVE-2015-1792 (CVE) |
| Related URL |
75154,75156,75157,75158,75161 (SecurityFocus) |
| Related URL |
(ISS) |
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