| Description: | The libtasn1 library provides Abstract Syntax Notation One (ASN.1) parsingand structures management, and Distinguished Encoding Rules (DER) encodingand decoding functions.It was discovered that the asn1_get_bit_der() function of the libtasn1library incorrectly reported the length of ASN.1-encoded data. Speciallycrafted ASN.1 input could cause an application using libtasn1 to performan out-of-bounds access operation, causing the application to crash or,possibly, execute arbitrary code. (CVE-2014-3468)Multiple incorrect buffer boundary check issues were discovered inlibtasn1. Specially crafted ASN.1 input could cause an application usinglibtasn1 to crash. (CVE-2014-3467)Multiple NULL pointer dereference flaws were found in libtasn1'sasn1_read_value() function. Specially crafted ASN.1 input could cause anapplication using libtasn1 to crash, if the application used theaforementioned function in a certain way. (CVE-2014-3469)Red Hat would like to thank GnuTLS upstream for reporting these issues.All libtasn1 users are advised to upgrade to these updated packages, whichcorrect these issues. For the update to take effect, all applicationslinked to the libtasn1 library must be restarted. |