USN-3367-1: gdb vulnerabilities

Releases

• Ubuntu 17.04
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• gdb - GNU Debugger

Details

Hanno Böck discovered that gdb incorrectly handled certain malformed AOUT
headers in PE executables. If a user or automated system were tricked into
processing a specially crafted binary, a remote attacker could use this
issue to cause gdb to crash, resulting in a denial of service, or possibly
execute arbitrary code. This issue only applied to Ubuntu 14.04 LTS.
(CVE-2014-8501)

It was discovered that gdb incorrectly handled printing bad bytes in Intel
Hex objects. If a user or automated system were tricked into processing a
specially crafted binary, a remote attacker could use this issue to cause
gdb to crash, resulting in a denial of service. This issue only applied to
Ubuntu 14.04 LTS. (CVE-2014-9939)

It was discovered that gdb 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 gdb 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 gdb 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 gdb 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 gdb 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 gdb 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

• gdb - 7.12.50.20170314-0ubuntu1.1

Ubuntu 16.04

• gdb - 7.11.1-0ubuntu1~16.5

Ubuntu 14.04

• gdb - 7.7.1-0ubuntu5~14.04.3

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

References

• CVE-2014-8501
• CVE-2014-9939
• CVE-2016-2226
• CVE-2016-4487
• CVE-2016-4488
• CVE-2016-4489
• CVE-2016-4490
• CVE-2016-4491
• CVE-2016-4492
• CVE-2016-4493
• CVE-2016-6131

Related notices

• USN-2496-1: binutils-static, binutils-multiarch, binutils-static-udeb, binutils, binutils-doc, binutils-dev, binutils-multiarch-dev, binutils-source
• USN-3337-1: valgrind
• USN-3368-1: libiberty, libiberty-dev
• USN-4336-2: binutils-m68k-linux-gnu, binutils-mips64el-linux-gnuabi64, binutils-mips64-linux-gnuabi64, binutils-mipsel-linux-gnu, binutils-powerpc64-linux-gnu, binutils-sparc64-linux-gnu, binutils-source, binutils-aarch64-linux-gnu, binutils-powerpc-linux-gnu, binutils-alpha-linux-gnu, binutils-mips-linux-gnu, binutils-s390x-linux-gnu, binutils-dev, binutils-arm-linux-gnueabi, binutils-hppa64-linux-gnu, binutils-hppa-linux-gnu, binutils-powerpc-linux-gnuspe, binutils-arm-linux-gnueabihf, binutils-powerpc64le-linux-gnu, binutils-multiarch, binutils, binutils-doc, binutils-sh4-linux-gnu, binutils-multiarch-dev