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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <3c19f5c9-e3a5-b1cd-3c79-88c81e532fe8@canonical.com>
Subject: [USN-3367-1] gdb vulnerabilities
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==========================================================================
Ubuntu Security Notice USN-3367-1
July 26, 2017
gdb vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in gdb.
Software Description:
- 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 LTS:
gdb 7.11.1-0ubuntu1~16.5
Ubuntu 14.04 LTS:
gdb 7.7.1-0ubuntu5~14.04.3
In general, a standard system update will make all the necessary changes.
References:
https://www.ubuntu.com/usn/usn-3367-1
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
Package Information:
https://launchpad.net/ubuntu/+source/gdb/7.12.50.20170314-0ubuntu1.1
https://launchpad.net/ubuntu/+source/gdb/7.11.1-0ubuntu1~16.5
https://launchpad.net/ubuntu/+source/gdb/7.7.1-0ubuntu5~14.04.3
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