Wireshark-bugs: [Wireshark-bugs] [Bug 10120] New: Clang ASAN : global-buffer-overflow GSM RLCMAC
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 20 May 2014 07:18:01 +0000
Bug ID 10120
Summary Clang ASAN : global-buffer-overflow GSM RLCMAC : dissect_dl_rlc_control_message
Classification Unclassified
Product Wireshark
Version Git
Hardware All
OS All
Status UNCONFIRMED
Severity Minor
Priority Low
Component Dissection engine (libwireshark)
Assignee bugzilla-admin@wireshark.org
Reporter alexis.lagoutte@gmail.com 

Build Information:
Paste the COMPLETE build information from "Help->About Wireshark", "wireshark
-v", or "tshark -v".
--
I fuzzing wireshark with ASAN (
http://clang.llvm.org/docs/AddressSanitizer.html) and it found the following
issue :


Input file: ../menagerie/public/10093-csnStreamDissector.pcap (
https://bugs.wireshark.org/bugzilla/attachment.cgi?id=10093 )


=================================================================
==16842==ERROR: AddressSanitizer: global-buffer-overflow on address
0x7fb41491f2e8 at pc 0x7fb410af4124 bp 0x7fff208cd59   0 sp 0x7fff208cd588
READ of size 8 at 0x7fb41491f2e8 thread T0
    #0 0x7fb410af4123 in ProcessError
/home/alagoutte/wireshark-clang/epan/dissectors/packet-csn1.c:103
(discriminator 1)
    #1 0x7fb410aedefd in csnStreamDissector
/home/alagoutte/wireshark-clang/epan/dissectors/packet-csn1.c:1052
    #2 0x7fb410aef971 in csnStreamDissector
/home/alagoutte/wireshark-clang/epan/dissectors/packet-csn1.c:567
    #3 0x7fb410aedefd in csnStreamDissector
/home/alagoutte/wireshark-clang/epan/dissectors/packet-csn1.c:1052
    #4 0x7fb410d1fc7d in dissect_dl_rlc_control_message
/home/alagoutte/wireshark-clang/epan/dissectors/packet-gsm_rlcmac.c   :7272
    #5 0x7fb410809cea in call_dissector_through_handle
/home/alagoutte/wireshark-clang/epan/packet.c:592
    #6 0x7fb41080d03c in call_dissector_only
/home/alagoutte/wireshark-clang/epan/packet.c:2251
    #7 0x7fb410809d19 in call_dissector_through_handle
/home/alagoutte/wireshark-clang/epan/packet.c:596
    #8 0x7fb410809f99 in dissector_try_uint_new
/home/alagoutte/wireshark-clang/epan/packet.c:1114
    #9 0x7fb411359b9d in decode_udp_ports
/home/alagoutte/wireshark-clang/epan/dissectors/packet-udp.c:415
    #10 0x7fb41135cec3 in dissect
/home/alagoutte/wireshark-clang/epan/dissectors/packet-udp.c:766
    #11 0x7fb410809d19 in call_dissector_through_handle
/home/alagoutte/wireshark-clang/epan/packet.c:596
    #12 0x7fb410809968 in dissector_try_uint_new
/home/alagoutte/wireshark-clang/epan/packet.c:1114
    #13 0x7fb410dfa70a in dissect_ip
/home/alagoutte/wireshark-clang/epan/dissectors/packet-ip.c:2408
    #14 0x7fb410809d19 in call_dissector_through_handle
/home/alagoutte/wireshark-clang/epan/packet.c:596
    #15 0x7fb410809f99 in dissector_try_uint_new
/home/alagoutte/wireshark-clang/epan/packet.c:1114
    #16 0x7fb410c4bc3a in dissect_ethertype
/home/alagoutte/wireshark-clang/epan/dissectors/packet-ethertype.c:303
    #17 0x7fb410809cea in call_dissector_through_handle
/home/alagoutte/wireshark-clang/epan/packet.c:592
    #18 0x7fb41080d03c in call_dissector_only
/home/alagoutte/wireshark-clang/epan/packet.c:2251
    #19 0x7fb410c4a796 in dissect_eth_common
/home/alagoutte/wireshark-clang/epan/dissectors/packet-eth.c:470
    #20 0x7fb410809d19 in call_dissector_through_handle
/home/alagoutte/wireshark-clang/epan/packet.c:596
    #21 0x7fb410809f99 in dissector_try_uint_new
/home/alagoutte/wireshark-clang/epan/packet.c:1114
    #22 0x7fb410c96e53 in dissect_frame
/home/alagoutte/wireshark-clang/epan/dissectors/packet-frame.c:488
    #23 0x7fb410809d19 in call_dissector_through_handle
/home/alagoutte/wireshark-clang/epan/packet.c:596
    #24 0x7fb41080d03c in call_dissector_only
/home/alagoutte/wireshark-clang/epan/packet.c:2251
    #25 0x7fb410807c84 in call_dissector
/home/alagoutte/wireshark-clang/epan/packet.c:2281
    #26 0x7fb4107ea418 in epan_dissect_run_with_taps
/home/alagoutte/wireshark-clang/epan/epan.c:348
    #27 0x4d44db in process_packet
/home/alagoutte/wireshark-clang/tshark.c:3537
    #28 0x4cf8df in load_cap_file /home/alagoutte/wireshark-clang/tshark.c:3327
    #29 0x7fb4094e4de4 in __libc_start_main
/build/buildd/eglibc-2.17/csu/libc-start.c:260
    #30 0x4ba62c in _start ??:?

0x7fb41491f2e8 is located 32 bytes to the right of global variable
'CSNDESCR_PHO_EGPRS_t' from 'packet-gsm_rlcmac.c' (0x   7fb41491f060) of size
616
SUMMARY: AddressSanitizer: global-buffer-overflow ??:0 ??
Shadow bytes around the buggy address:
  0x0ff70291be00: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
  0x0ff70291be10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0ff70291be20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0ff70291be30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0ff70291be40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0ff70291be50: 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9[f9]f9 f9
  0x0ff70291be60: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
  0x0ff70291be70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0ff70291be80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f9
  0x0ff70291be90: f9 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
  0x0ff70291bea0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Heap right redzone:      fb
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack partial redzone:   f4
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  ASan internal:           fe
==16842==ABORTING

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