A vulnerability has been discovered and corrected in jbigkit: Stack-based buffer overflow in the jbg_dec_in function in libjbig/jbig.c in JBIG-KIT before 2.1 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted image file . The updated packages for mbs1 have been upgraded to the 2.1 version and the packages for mes5 has been patched to resolve this security flaw.