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USN-3368-1: libiberty vulnerabilities

26 July 2017

Several security issues were fixed in libiberty.

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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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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