CVE-2015-3239

Priority
Description
Off-by-one error in the dwarf_to_unw_regnum function in include/dwarf_i.h
in libunwind 1.1 allows local users to have unspecified impact via invalid
dwarf opcodes.
Notes
 sarnold> I saw nothing in callers of this macro that would prevent
  less-than-zero accesses: input params were sometimes integers, sometimes
  harder to determine the type. Debian codesearch shows many duplications of
  the <= mistake with dwarf_to_unw_regnum arrays in other files, not just the
  one dwarf_i.h.
Package
Upstream:released (0.99-0.2+deb6u1, 1.1-4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was needed)
Ubuntu 14.04 LTS (Trusty Tahr):needed
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (1.1-4.1)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (1.1-4.1)
Ubuntu 18.10 (Cosmic Cuttlefish):not-affected (1.1-4.1)
Ubuntu 19.04 (Disco Dingo):not-affected (1.1-4.1)
Patches:
Upstream:http://git.savannah.gnu.org/cgit/libunwind.git/commit/?id=396b6c7ab737e2bff244d640601c436a26260ca1
More Information

Updated: 2019-01-14 21:17:04 UTC (commit 51f9b73af244ba86b9321e46e526586c25a8e060)