Medium: libtasn1

Issue Overview:

It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data. Specially crafted ASN.1 input could cause an application using libtasn1 to perform an 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 in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467)

Multiple NULL pointer dereference flaws were found in libtasn1’s asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469)

Affected Packages:

libtasn1

Issue Correction:
Run yum update libtasn1 to update your system.

New Packages:

i686:  
    libtasn1-devel-2.3-6.6.amzn1.i686  
    libtasn1-2.3-6.6.amzn1.i686  
    libtasn1-tools-2.3-6.6.amzn1.i686  
    libtasn1-debuginfo-2.3-6.6.amzn1.i686  
  
src:  
    libtasn1-2.3-6.6.amzn1.src  
  
x86_64:  
    libtasn1-debuginfo-2.3-6.6.amzn1.x86_64  
    libtasn1-2.3-6.6.amzn1.x86_64  
    libtasn1-devel-2.3-6.6.amzn1.x86_64  
    libtasn1-tools-2.3-6.6.amzn1.x86_64  

Additional References

Red Hat: CVE-2014-3467, CVE-2014-3468, CVE-2014-3469

Mitre: CVE-2014-3467, CVE-2014-3468, CVE-2014-3469