USN-3367-1: gdb vulnerabilities

26 July 2017

Several security issues were fixed in gdb.

Releases

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
Ubuntu 16.04
Ubuntu 14.04

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

Related notices