Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : gdb vulnerabilities (USN-3367-1)

Ubuntu Security Notice (C) 2017 Canonical, Inc. / NASL script (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

Hanno Bock 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).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected gdb package.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

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