From: | tlyu@mit.edu |
Subject: | SVN Commit |
asn1buf_imbed() can perform pointer arithmetic that causes the "bound"
pointer of the subbuffer to be less than the "next" pointer. This can
lead to malloc() failure or crash.
In asn1buf_imbed(), check the length before doing arithmetic to set
subbuf->bound. In asn1buf_remove_octetstring() and
asn1buf_remove_charstring(), check for invalid buffer pointers before
executing an unsigned length check against a (casted to size_t)
negative number.
https://github.com/krb5/krb5/commit/9024676102cbd24d08f41fa3de7761d64f13db4d
Commit By: tlyu
Revision: 22175
Changed Files:
U trunk/src/lib/krb5/asn.1/asn1buf.c