[Forgot Password]
Login  Register Subscribe

23631

 
 

115083

 
 

97147

 
 

909

 
 

78764

 
 

109

Paid content will be excluded from the download.


Download | Alert*
OVAL

ALAS-2016-661 ---- openssl

ID: oval:org.secpod.oval:def:1600367Date: (C)2016-05-19   (M)2017-11-10
Class: PATCHFamily: unix




A padding oracle flaw was found in the Secure Sockets Layer version 2.0 protocol. An attacker can potentially use this flaw to decrypt RSA-encrypted cipher text from a connection using a newer SSL/TLS protocol version, allowing them to decrypt such connections. This cross-protocol attack is publicly referred to as DROWN . Prior to this advisory, SSLv2 has been disabled by default in OpenSSL on the Amazon Linux AMI. However, application configurations may still re-enable SSLv2.A flaw was found in the way TLS 1.2 could use the MD5 hash function for signing ServerKeyExchange and Client Authentication packets during a TLS handshake. A man-in-the-middle attacker able to force a TLS connection to use the MD5 hash function could use this flaw to conduct collision attacks to impersonate a TLS server or an authenticated TLS client. A flaw was found in the way malicious SSLv2 clients could negotiate SSLv2 ciphers that have been disabled on the server. This could result in weak SSLv2 ciphers being used for SSLv2 connections, making them vulnerable to man-in-the-middle attacks. A side-channel attack was found that makes use of cache-bank conflicts on the Intel Sandy-Bridge microarchitecture. An attacker who has the ability to control code in a thread running on the same hyper-threaded core as the victim's thread that is performing decryption, could use this flaw to recover RSA private keys. A double-free flaw was found in the way OpenSSL parsed certain malformed DSA private keys. An attacker could create specially crafted DSA private keys that, when processed by an application compiled against OpenSSL, could cause the application to crash. An integer overflow flaw, leading to a NULL pointer dereference or a heap-based memory corruption, was found in the way some BIGNUM functions of OpenSSL were implemented. Applications that use these functions with large untrusted input could crash or, potentially, execute arbitrary code. The fmtstr function in crypto/bio/b_print.c in OpenSSL improperly calculated string lengths, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data. The doapr_outch function in crypto/bio/b_print.c in OpenSSL did not verify that a certain memory allocation succeeds, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data

Platform:
Amazon Linux AMI
Product:
openssl
Reference:
ALAS-2016-661
CVE-2016-0800
CVE-2015-3197
CVE-2016-0702
CVE-2016-2842
CVE-2015-7575
CVE-2016-0705
CVE-2016-0799
CVE-2016-0797
CVE    8
CVE-2016-0799
CVE-2015-3197
CVE-2016-0800
CVE-2016-2842
...
CPE    79
cpe:/a:oracle:tuxedo:12.1.1.0
cpe:/a:oracle:peoplesoft_enterprise_peopletools:8.53
cpe:/a:oracle:peoplesoft_enterprise_peopletools:8.54
cpe:/a:oracle:peoplesoft_enterprise_peopletools:8.55
...

© 2013 SecPod Technologies