Emilia Käsper

The issue is related to the lack of protection for internal data in the Tcl component of the operating system. It can be exploited by a remote attacker to obtain sensitive information by leveraging SSLv2 support.

The issue affects the OpenSSL package, which is used in various operating systems, including Red Hat Enterprise Linux. Exploitation of the vulnerabilities can lead to a violation of confidentiality, integrity, and availability of protected information. The vulnerabilities can be exploited remotely. The ASN1 item ex d2i function in crypto/asn1/tasn dec.c does not reinitialize CHOICE and ADB data structures, which might allow attackers to cause a denial of service (invalid write operation and memory corruption) by leveraging an application that relies on ASN.1 structure reuse.