USN-3368-1: libiberty vulnerabilities

26 July 2017

Several security issues were fixed in libiberty.

Releases

Packages

  • libiberty - library of utility functions used by GNU programs

Details

It was discovered that libiberty incorrectly handled certain string
operations. If a user or automated system were tricked into processing a
specially crafted binary, a remote attacker could use this issue to cause
libiberty to crash, resulting in a denial of service, or possibly execute
arbitrary code. This issue only applied to Ubuntu 14.04 LTS and Ubuntu
16.04 LTS. (CVE-2016-2226)

It was discovered that libiberty incorrectly handled parsing certain
binaries. If a user or automated system were tricked into processing a
specially crafted binary, a remote attacker could use this issue to cause
libiberty to crash, resulting in a denial of service. This issue only
applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-4487,
CVE-2016-4488, CVE-2016-4489, CVE-2016-4490, CVE-2016-4492, CVE-2016-4493,
CVE-2016-6131)

It was discovered that libiberty incorrectly handled parsing certain
binaries. If a user or automated system were tricked into processing a
specially crafted binary, a remote attacker could use this issue to cause
libiberty to crash, resulting in a denial of service. (CVE-2016-4491)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 17.04
Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.

Related notices

  • USN-4336-2: binutils-hppa64-linux-gnu, binutils-aarch64-linux-gnu, binutils-mips64-linux-gnuabi64, binutils-mipsel-linux-gnu, binutils-multiarch, binutils-multiarch-dev, binutils-mips64el-linux-gnuabi64, binutils-powerpc-linux-gnuspe, binutils-dev, binutils-doc, binutils-arm-linux-gnueabi, binutils-alpha-linux-gnu, binutils-sparc64-linux-gnu, binutils-source, binutils-powerpc64le-linux-gnu, binutils-arm-linux-gnueabihf, binutils-mips-linux-gnu, binutils-s390x-linux-gnu, binutils, binutils-hppa-linux-gnu, binutils-sh4-linux-gnu, binutils-powerpc-linux-gnu, binutils-m68k-linux-gnu, binutils-powerpc64-linux-gnu
  • USN-3337-1: valgrind
  • USN-3367-1: gdb-minimal, gdb-source, gdb, gdb-multiarch, gdb64, gdb-doc, gdbserver