==========================================================================
Ubuntu Security Notice USN-3415-1
September 14, 2017

tcpdump 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 tcpdump.

Software Description:
- tcpdump: command-line network traffic analyzer

Details:

Wilfried Kirsch discovered a buffer overflow in the SLIP decoder
in tcpdump. A remote attacker could use this to cause a denial
of service (application crash) or possibly execute arbitrary
code. (CVE-2017-11543)

Bhargava Shastry discovered a buffer overflow in the bitfield converter
utility function bittok2str_internal() in tcpdump. A remote attacker
could use this to cause a denial of service (application crash)
or possibly execute arbitrary code. (CVE-2017-13011)

Otto Airamo and Antti Levomaki discovered logic errors in different
protocol parsers in tcpdump that could lead to an infinite loop. A
remote attacker could use these to cause a denial of service
(application hang). CVE-2017-12989, CVE-2017-12990, CVE-2017-12995,
CVE-2017-12997)

Otto Airamo, Brian Carpenter, Yannick Formaggio, Kamil Frankowicz,
Katie Holly, Kim Gwan Yeong, Antti Levomaki, Henri Salo, and Bhargava
Shastry discovered out-of-bounds reads in muliptle protocol parsers
in tcpdump.  A remote attacker could use these to cause a denial
of service (application crash). (CVE-2017-11108, CVE-2017-11541,
CVE-2017-11542, CVE-2017-12893, CVE-2017-12894, CVE-2017-12895,
CVE-2017-12896, CVE-2017-12897, CVE-2017-12898, CVE-2017-12899,
CVE-2017-12900, CVE-2017-12901, CVE-2017-12902, CVE-2017-12985,
CVE-2017-12986, CVE-2017-12987, CVE-2017-12988, CVE-2017-12991,
CVE-2017-12992, CVE-2017-12993, CVE-2017-12994, CVE-2017-12996,
CVE-2017-12998, CVE-2017-12999, CVE-2017-13000, CVE-2017-13001,
CVE-2017-13002, CVE-2017-13003, CVE-2017-13004, CVE-2017-13005,
CVE-2017-13006, CVE-2017-13007, CVE-2017-13008, CVE-2017-13009,
CVE-2017-13010, CVE-2017-13012, CVE-2017-13013, CVE-2017-13014,
CVE-2017-13015, CVE-2017-13016, CVE-2017-13017, CVE-2017-13018,
CVE-2017-13019, CVE-2017-13020, CVE-2017-13021, CVE-2017-13022,
CVE-2017-13023, CVE-2017-13024, CVE-2017-13025, CVE-2017-13026,
CVE-2017-13027, CVE-2017-13028, CVE-2017-13029, CVE-2017-13030,
CVE-2017-13031, CVE-2017-13032, CVE-2017-13033, CVE-2017-13034,
CVE-2017-13035, CVE-2017-13036, CVE-2017-13037, CVE-2017-13038,
CVE-2017-13039, CVE-2017-13040, CVE-2017-13041, CVE-2017-13042,
CVE-2017-13043, CVE-2017-13044, CVE-2017-13045, CVE-2017-13046,
CVE-2017-13047, CVE-2017-13048, CVE-2017-13049, CVE-2017-13050,
CVE-2017-13051, CVE-2017-13052, CVE-2017-13053, CVE-2017-13054,
CVE-2017-13055, CVE-2017-13687, CVE-2017-13688, CVE-2017-13689,
CVE-2017-13690, CVE-2017-13725)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 17.04:
  tcpdump                         4.9.2-0ubuntu0.17.04.2

Ubuntu 16.04 LTS:
  tcpdump                         4.9.2-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
  tcpdump                         4.9.2-0ubuntu0.14.04.1

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

References:
  https://www.ubuntu.com/usn/usn-3415-1
  CVE-2017-11108, CVE-2017-11541, CVE-2017-11542, CVE-2017-11543,
  CVE-2017-12893, CVE-2017-12894, CVE-2017-12895, CVE-2017-12896,
  CVE-2017-12897, CVE-2017-12898, CVE-2017-12899, CVE-2017-12900,
  CVE-2017-12901, CVE-2017-12902, CVE-2017-12985, CVE-2017-12986,
  CVE-2017-12987, CVE-2017-12988, CVE-2017-12989, CVE-2017-12990,
  CVE-2017-12991, CVE-2017-12992, CVE-2017-12993, CVE-2017-12994,
  CVE-2017-12995, CVE-2017-12996, CVE-2017-12997, CVE-2017-12998,
  CVE-2017-12999, CVE-2017-13000, CVE-2017-13001, CVE-2017-13002,
  CVE-2017-13003, CVE-2017-13004, CVE-2017-13005, CVE-2017-13006,
  CVE-2017-13007, CVE-2017-13008, CVE-2017-13009, CVE-2017-13010,
  CVE-2017-13011, CVE-2017-13012, CVE-2017-13013, CVE-2017-13014,
  CVE-2017-13015, CVE-2017-13016, CVE-2017-13017, CVE-2017-13018,
  CVE-2017-13019, CVE-2017-13020, CVE-2017-13021, CVE-2017-13022,
  CVE-2017-13023, CVE-2017-13024, CVE-2017-13025, CVE-2017-13026,
  CVE-2017-13027, CVE-2017-13028, CVE-2017-13029, CVE-2017-13030,
  CVE-2017-13031, CVE-2017-13032, CVE-2017-13033, CVE-2017-13034,
  CVE-2017-13035, CVE-2017-13036, CVE-2017-13037, CVE-2017-13038,
  CVE-2017-13039, CVE-2017-13040, CVE-2017-13041, CVE-2017-13042,
  CVE-2017-13043, CVE-2017-13044, CVE-2017-13045, CVE-2017-13046,
  CVE-2017-13047, CVE-2017-13048, CVE-2017-13049, CVE-2017-13050,
  CVE-2017-13051, CVE-2017-13052, CVE-2017-13053, CVE-2017-13054,
  CVE-2017-13055, CVE-2017-13687, CVE-2017-13688, CVE-2017-13689,
  CVE-2017-13690, CVE-2017-13725

Package Information:
  https://launchpad.net/ubuntu/+source/tcpdump/4.9.2-0ubuntu0.17.04.2
  https://launchpad.net/ubuntu/+source/tcpdump/4.9.2-0ubuntu0.16.04.1
  https://launchpad.net/ubuntu/+source/tcpdump/4.9.2-0ubuntu0.14.04.1