From the Mandriva advisory:
t1lib 5.1.2 and earlier reads from invalid memory locations, which
allows remote attackers to cause a denial of service (application
crash) via a crafted Type 1 font in a PDF document, a different
vulnerability than CVE-2011-0764 (CVE-2011-1552).
Use-after-free vulnerability in t1lib 5.1.2 and earlier allows
remote attackers to cause a denial of service (application crash)
via a PDF document containing a crafted Type 1 font that triggers an
invalid memory write, a different vulnerability than CVE-2011-0764
(CVE-2011-1553).
Off-by-one error in t1lib 5.1.2 and earlier allows remote attackers
to cause a denial of service (application crash) via a PDF document
containing a crafted Type 1 font that triggers an invalid memory
read, integer overflow, and invalid pointer dereference, a different
vulnerability than CVE-2011-0764 (CVE-2011-1554). | 