IBM SECURITY ADVISORY

First Issued: Thu May 25 11:23:13 CDT 2017
|Updated: Thu Jul 27 11:57:05 CDT 2017
|Update 1: Corrected the checksum value for iFix IV94729s9b.170425.epkg.Z

The most recent version of this document is available here:

http://aix.software.ibm.com/aix/efixes/security/tcpdump_advisory2.asc
https://aix.software.ibm.com/aix/efixes/security/tcpdump_advisory2.asc
ftp://aix.software.ibm.com/aix/efixes/security/tcpdump_advisory2.asc

Security Bulletin: Vulnerabilities in tcpdump affect AIX
CVE-2016-7922 CVE-2016-7923 CVE-2016-7924 CVE-2016-7925
CVE-2016-7926 CVE-2016-7927 CVE-2016-7928 CVE-2016-7930
CVE-2016-7931 CVE-2016-7932 CVE-2016-7933 CVE-2016-7934
CVE-2016-7935 CVE-2016-7936 CVE-2016-7937 CVE-2016-7939
CVE-2016-7940 CVE-2016-7973 CVE-2016-7974 CVE-2016-7975
CVE-2016-7983 CVE-2016-7984 CVE-2016-7992 CVE-2016-7993
CVE-2016-8574 CVE-2016-8575 CVE-2017-5202 CVE-2017-5203
CVE-2017-5204 CVE-2017-5482 CVE-2017-5483 CVE-2017-5484
CVE-2017-5485 CVE-2017-5486

Note: See section IV for full CVE details.

SUMMARY:

There are multiple vulnerabilities in tcpdump that impact AIX. 

===============================================================================

I. AFFECTED PRODUCTS AND VERSIONS:

AIX 5.3, 6.1, 7.1, 7.2

The following fileset levels are vulnerable:

key_fileset = aix

Fileset Lower Level Upper Level KEY

bos.net.tcp.server 5.3.12.0 5.3.12.6 key_w_fs
bos.net.tcp.server 6.1.9.0 6.1.9.201 key_w_fs
bos.net.tcp.server 7.1.3.0 7.1.3.49 key_w_fs
bos.net.tcp.server 7.1.4.0 7.1.4.31 key_w_fs
bos.net.tcp.tcpdump 7.2.0.0 7.2.0.2 key_w_fs
bos.net.tcp.tcpdump 7.2.1.0 7.2.1.0 key_w_fs

Note: To find out whether the affected filesets are installed
on your systems, refer to the lslpp command found in AIX user’s
guide.

Example: lslpp -L | grep -i bos.net.tcp.server

II. REMEDIATION:

A. FIXES

  Fixes are available.

  The fixes can be downloaded via ftp or http from:

  ftp://aix.software.ibm.com/aix/efixes/security/tcpdump_fix2.tar
  http://aix.software.ibm.com/aix/efixes/security/tcpdump_fix2.tar
  https://aix.software.ibm.com/aix/efixes/security/tcpdump_fix2.tar 

  The links above are to a tar file containing this signed
  advisory, interim fixes, and OpenSSL signatures for each interim fix.
  The fixes below include prerequisite checking. This will
  enforce the correct mapping between the fixes and AIX
  Technology Levels.


  AIX Level  Interim Fix (*.Z)         KEY
  ----------------------------------------------
  5.3.12.9   IV94729s9b.170425.epkg.Z  key_w_fix
  6.1.9.7    IV94728s9c.170420.epkg.Z  key_w_fix
  6.1.9.8    IV94728s9c.170420.epkg.Z  key_w_fix
  6.1.9.9    IV94728s9c.170420.epkg.Z  key_w_fix
  7.1.3.7    IV94727s9b.170417.epkg.Z  key_w_fix
  7.1.3.8    IV94727s9b.170417.epkg.Z  key_w_fix
  7.1.3.9    IV94727s9b.170417.epkg.Z  key_w_fix
  7.1.4.2    IV94726s4c.170417.epkg.Z  key_w_fix
  7.1.4.3    IV94726s4c.170417.epkg.Z  key_w_fix
  7.1.4.4    IV94726s4c.170417.epkg.Z  key_w_fix
  7.2.0.1    IV94724s4b.170417.epkg.Z  key_w_fix
  7.2.0.2    IV94724s4b.170417.epkg.Z  key_w_fix
  7.2.0.3    IV94724s4b.170417.epkg.Z  key_w_fix
  7.2.1.1    IV94723s2a.170414.epkg.Z  key_w_fix
  7.2.1.2    IV94723s2a.170414.epkg.Z  key_w_fix
  7.2.1.3    IV94723s2a.170414.epkg.Z  key_w_fix
                  
  To extract the fixes from the tar file:

  tar xvf tcpdump_fix2.tar
  cd tcpdump_fix2

  Verify you have retrieved the fixes intact:

  The checksums below were generated using the
  "openssl dgst -sha256 <filename>" command as the following:

  openssl dgst -sha256                                              filename                 KEY
  -----------------------------------------------------------------------------------------------------

| 346f594ec89137c8bfd4d27998cb15abfd1993ff42d6e5d021ec215ca55d7131 IV94729s9b.170425.epkg.Z key_w_csum
a2fc19f00b4ff99019916c379d314642483d323b7b9787abc32ecc0a05dd5241 IV94728s9c.170420.epkg.Z key_w_csum
e2931d9ba01be3eb4d31a35153cbd79392ef7cf5b5fa09849c5b0613f6b05b0b IV94727s9b.170417.epkg.Z key_w_csum
6d39bdee9318b820748385f382ba6f365b121a53ee2818c546e0f65e0d312dbd IV94726s4c.170417.epkg.Z key_w_csum
a4d1c36dec0f853dba468e105b57137695821818b4dbf51f4d991979fc010672 IV94724s4b.170417.epkg.Z key_w_csum
e6619c4b98a45048e453b7fc2a3a27e3a34fb80d36d61a73145fa82e14a4dcd4 IV94723s2a.170414.epkg.Z key_w_csum

  These sums should match exactly. The OpenSSL signatures in the tar
  file and on this advisory can also be used to verify the
  integrity of the fixes.  If the sums or signatures cannot be
  confirmed, contact IBM AIX Support at https://ibm.com/support/
  and describe the discrepancy.
        
  openssl dgst -sha1 -verify <pubkey_file> -signature <advisory_file>.sig <advisory_file>

  openssl dgst -sha1 -verify <pubkey_file> -signature <ifix_file>.sig <ifix_file>

  Published advisory OpenSSL signature file location:

  http://aix.software.ibm.com/aix/efixes/security/tcpdump_advisory2.asc.sig
  https://aix.software.ibm.com/aix/efixes/security/tcpdump_advisory2.asc.sig
  ftp://aix.software.ibm.com/aix/efixes/security/tcpdump_advisory2.asc.sig 

B. INTERIM FIX INSTALLATION

  IMPORTANT: If possible, it is recommended that a mksysb backup
  of the system be created.  Verify it is both bootable and
  readable before proceeding.

  To preview a fix installation:

  installp -a -d fix_name -p all  # where fix_name is the name of the
                                  # fix package being previewed.
  To install a fix package:

  installp -a -d fix_name -X all  # where fix_name is the name of the
                                  # fix package being installed.

  Interim fixes have had limited functional and regression
  testing but not the full regression testing that takes place
  for Service Packs; however, IBM does fully support them.

  Interim fix management documentation can be found at:
  http://www14.software.ibm.com/webapp/set2/sas/f/aix.efixmgmt/home.html

  To preview an interim fix installation:

  emgr -e ipkg_name -p         # where ipkg_name is the name of the
                               # interim fix package being previewed.

  To install an interim fix package:

  emgr -e ipkg_name -X         # where ipkg_name is the name of the
                               # interim fix package being installed.

C. APARS

  IBM has assigned the following APARs to this problem:

  AIX Level APAR     Availability  SP KEY
  ------------------------------------------------
  5.3.12    IV94729  **            N/A  key_w_apar
  6.1.9     IV94728  **            SP10 key_w_apar
  7.1.3     IV94727  **            N/A  key_w_apar
  7.1.4     IV94726  **            SP5  key_w_apar
  7.2.0     IV94724  **            SP5  key_w_apar
  7.2.1     IV94723  **            SP3  key_w_apar

  ** Please refer to AIX support lifecycle information page for availability
  of Service Packs:
  http://www-01.ibm.com/support/docview.wss?uid=isg3T1012517

  Subscribe to the APARs here:

  https://www.ibm.com/support/docview.wss?uid=isg1IV94729
  https://www.ibm.com/support/docview.wss?uid=isg1IV94728
  https://www.ibm.com/support/docview.wss?uid=isg1IV94727
  https://www.ibm.com/support/docview.wss?uid=isg1IV94726
  https://www.ibm.com/support/docview.wss?uid=isg1IV94723
  https://www.ibm.com/support/docview.wss?uid=isg1IV94724
             
  By subscribing, you will receive periodic email alerting you
  to the status of the APAR, and a link to download the fix once
  it becomes available.

III. WORKAROUNDS AND MITIGATIONS:

    None.

IV.VULNERABILITY DETAILS:

Vulnerabilities in tcpdump affect AIX:

CVEID: CVE-2016-7922
https://vulners.com/cve/CVE-2016-7922
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the AH parser in the print-ah.c:ah_print() function. By sending an
overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/12158
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7923
https://vulners.com/cve/CVE-2016-7923
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the ARP parser in the print-arp.c:arp_print() function. By sending an
overly long argument, a remote attacker could overflow a buffer and execute arbitrary
code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121550
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7924
https://vulners.com/cve/CVE-2016-7924
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the ATM parser in the print-atm.c:oam_print() function. By sending an
overly long argument, a remote attacker could overflow a buffer and execute arbitrary
code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121551
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7925
https://vulners.com/cve/CVE-2016-7925
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the SLIP parser in the print-sl.c:sl_if_print() function. By sending
an overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121552
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7926
https://vulners.com/cve/CVE-2016-79267926
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the Ethernet parser in the print-ether.c:ethertype_print() function.
By sending an overly long argument, a remote attacker could overflow a buffer and
execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121553
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7927
https://vulners.com/cve/CVE-2016-7927
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the IEEE 802.11 parser in the print-802_11.c:ieee802_11_radio_print()
function. By sending an overly long argument, a remote attacker could overflow a
buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121554
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7928
https://vulners.com/cve/CVE-2016-7928
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the IPComp parser in the print-ipcomp.c:ipcomp_print() function. By
sending an overly long argument, a remote attacker could overflow a buffer and
execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121555
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7930
https://vulners.com/cve/CVE-2016-7930
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the LLC/SNAP parser in the print-llc.c:llc_print() function. By sending
an overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121557
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7931
https://vulners.com/cve/CVE-2016-7931
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the MPLS parser in the print-mpls.c:mpls_print() function. By sending
an overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121558
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7932
https://vulners.com/cve/CVE-2016-7932
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the PIM parser in the print-pim.c:pimv2_check_checksum() function. By
sending an overly long argument, a remote attacker could overflow a buffer and
execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121559
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7933
https://vulners.com/cve/CVE-2016-7933�
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the PPP parser in the print-ppp.c:ppp_hdlc_if_print() function. By
sending an overly long argument, a remote attacker could overflow a buffer and
execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121560
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7934
https://vulners.com/cve/CVE-2016-7934
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the RTCP parser in the print-udp.c:rtcp_print() function. By sending
an overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121561
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7935
https://vulners.com/cve/CVE-2016-7935
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the RTP parser in the print-udp.c:rtp_print() function. By sending an
overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121562
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7936
https://vulners.com/cve/CVE-2016-7936
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the UDP parser in the print-udp.c:udp_print() function. By sending an
overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121563
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7937
https://vulners.com/cve/CVE-2016-7937
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the VAT parser in the print-udp.c:vat_print() function. By sending an
overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121564
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7939
https://vulners.com/cve/CVE-2016-7939
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the GRE parser in the print-gre.c and other functions. By sending an
overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121566
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7940
https://vulners.com/cve/CVE-2016-7940
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the STP parser in the print-stp.c and other functions. By sending an
overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121567
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7973
https://vulners.com/cve/CVE-2016-7973
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the AppleTalk parser in the print-atalk.c and other functions. By
sending an overly long argument, a remote attacker could overflow a buffer and
execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121568
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7974
https://vulners.com/cve/CVE-2016-7974
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the IP parser in the print-ip.c and other functions. By sending an
overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121569
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7975
https://vulners.com/cve/CVE-2016-7975
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the TCP parser in the print-tcp.c:tcp_print() function. By sending an
overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121570
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7983
https://vulners.com/cve/CVE-2016-7983
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the BOOTP parser in the print-bootp.c:bootp_print() function. By
sending an overly long argument, a remote attacker could overflow a buffer and
execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121571
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7984
https://vulners.com/cve/CVE-2016-7984
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the TFTP parser in the print-tftp.c:tftp_print() function. By sending
an overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121572
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7992
https://vulners.com/cve/CVE-2016-7992
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the Classical IP over ATM parser in the print-cip.c:cip_if_print()
function. By sending an overly long argument, a remote attacker could overflow a
buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121575
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-7993
https://vulners.com/cve/CVE-2016-7993
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by multiple parsers in the util-print.c:relts_print() function. By sending
an overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121576
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-8574
https://vulners.com/cve/CVE-2016-8574
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the FRF.15 parser in the print-fr.c:frf15_print() function. By sending
an overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121577
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-8575
https://vulners.com/cve/CVE-2016-8575
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the Q.933 parser in the print-fr.c:q933_print() function. By sending an
overly long argument, a remote attacker could overflow a buffer and execute arbitrary
code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121578
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-5202
https://vulners.com/cve/CVE-2017-5202
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the ISO CLNS parser in the print-isoclns.c:clnp_print() function. By
sending an overly long argument, a remote attacker could overflow a buffer and
execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121579
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-5203
https://vulners.com/cve/CVE-2017-5203
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the BOOTP parser in the print-bootp.c:bootp_print() function. By sending
an overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121580
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-5204
https://vulners.com/cve/CVE-2017-5204
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the IPv6 parser in the print-ip6.c:ip6_print() function. By sending an
overly long argument, a remote attacker could overflow a buffer and execute arbitrary
code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121581
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-5482
https://vulners.com/cve/CVE-2017-5482
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the Q.933 parser in the print-fr.c:q933_print() function. By sending
an overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121585
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-5483
https://vulners.com/cve/CVE-2017-5483
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the SNMP parser in the print-snmp.c:asn1_parse() function. By sending
an overly long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121586
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-5484
https://vulners.com/cve/CVE-2017-5484
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the ATM parser in the print-atm.c:sig_print() function. By sending an
overly long argument, a remote attacker could overflow a buffer and execute arbitrary
code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121587
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-5485
https://vulners.com/cve/CVE-2017-5485
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the ISO CLNS parser in the addrtoname.c:lookup_nsap() function. By
sending an overly long argument, a remote attacker could overflow a buffer and
execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121588
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-5486
https://vulners.com/cve/CVE-2017-5486
DESCRIPTION: tcpdump is vulnerable to a buffer overflow, caused by improper bounds
checking by the ISO CLNS parser in the print-isoclns.c:clnp_print() function. By
sending an overly long argument, a remote attacker could overflow a buffer and
execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121589
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

===============================================================================

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Please contact your local IBM AIX support center for any
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REFERENCES:

Complete CVSS v3 Guide:  http://www.first.org/cvss/user-guide
    https://www.first.org/cvss/user-guide
On-line Calculator v3:
    http://www.first.org/cvss/calculator/3.0
    https://www.first.org/cvss/calculator/3.0

ACKNOWLEDGEMENTS:

None 

CHANGE HISTORY:

First Issued: Thu May 25 11:23:13 CDT 2017

| Updated: Thu Jul 27 11:57:05 CDT 2017
| Update 1: Corrected the checksum value for iFix IV94729s9b.170425.epkg.Z

===============================================================================

*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact
of this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.

Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an “industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response.” IBM PROVIDES THE CVSS SCORES “AS IS” WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.