Wireshark – dissect_diameter_base_framed_ipv6_prefix Stack Buffer Overflow
Source: https://code.google.com/p/google-security-research/issues/detail?id=644 The following crash due to a stack-based buffer overflow can be observed in an ASAN build of Wireshark (current git master), by feeding a malformed file to tshark ("$ ./tshark -nVxr /path/to/file"): --- cut --- ==4567==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffc1c406210 at pc 0x0000004c1386 bp 0x7ffc1c406010 sp 0x7ffc1c4057c0 WRITE of size 32 at 0x7ffc1c406210 thread T0 #0 0x4c1385 in __asan_memcpy llvm/projects/compiler-rt/lib/asan/asan_interceptors.cc:393 #1 0xc27f15 in tvb_memcpy wireshark/epan/tvbuff.c:783:10 #2 0x233feeb in dissect_diameter_base_framed_ipv6_prefix wireshark/epan/dissectors/packet-diameter.c:526:3 #3 0xaf3794 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #4 0xae5692 in call_dissector_work wireshark/epan/packet.c:691:9 #5 0xae4e1d in dissector_try_uint_new wireshark/epan/packet.c:1148:9 #6 0x234b527 in call_avp_subdissector wireshark/epan/dissectors/packet-diameter.c:612:4 #7 0x234a804 in dissect_diameter_avp wireshark/epan/dissectors/packet-diameter.c:805:2 #8 0x23514b5 in dissect_diameter_common wireshark/epan/dissectors/packet-diameter.c:1405:13 #9 0x233f82f in dissect_diameter wireshark/epan/dissectors/packet-diameter.c:1495:9 #10 0xaf3794 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #11 0xae5692 in call_dissector_work wireshark/epan/packet.c:691:9 #12 0xae4e1d in dissector_try_uint_new wireshark/epan/packet.c:1148:9 #13 0x39012a2 in dissect_payload wireshark/epan/dissectors/packet-sctp.c:2517:9 #14 0x38f7d37 in dissect_data_chunk wireshark/epan/dissectors/packet-sctp.c:3443:16 #15 0x38f0ac8 in dissect_sctp_chunk wireshark/epan/dissectors/packet-sctp.c:4360:14 #16 0x38ed8e6 in dissect_sctp_chunks wireshark/epan/dissectors/packet-sctp.c:4515:9 #17 0x38eb79f in dissect_sctp_packet wireshark/epan/dissectors/packet-sctp.c:4678:3 #18 0x38e95d5 in dissect_sctp wireshark/epan/dissectors/packet-sctp.c:4732:3 #19 0xaf3794 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #20 0xae5692 in call_dissector_work wireshark/epan/packet.c:691:9 #21 0xae4e1d in dissector_try_uint_new wireshark/epan/packet.c:1148:9 #22 0x29c5318 in ip_try_dissect wireshark/epan/dissectors/packet-ip.c:2001:7 #23 0x29d0521 in dissect_ip_v4 wireshark/epan/dissectors/packet-ip.c:2485:10 #24 0xaf3794 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #25 0xae5692 in call_dissector_work wireshark/epan/packet.c:691:9 #26 0xae4e1d in dissector_try_uint_new wireshark/epan/packet.c:1148:9 #27 0xae5a38 in dissector_try_uint wireshark/epan/packet.c:1174:9 #28 0x24e0824 in dissect_ethertype wireshark/epan/dissectors/packet-ethertype.c:307:21 #29 0xaf3794 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #30 0xae5692 in call_dissector_work wireshark/epan/packet.c:691:9 #31 0xaefb1b in call_dissector_only wireshark/epan/packet.c:2662:8 #32 0xae09f3 in call_dissector_with_data wireshark/epan/packet.c:2675:8 #33 0x24dc752 in dissect_eth_common wireshark/epan/dissectors/packet-eth.c:545:5 #34 0x24d499a in dissect_eth_maybefcs wireshark/epan/dissectors/packet-eth.c:828:5 #35 0xaf3794 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #36 0xae5692 in call_dissector_work wireshark/epan/packet.c:691:9 #37 0xae4e1d in dissector_try_uint_new wireshark/epan/packet.c:1148:9 #38 0x25dca12 in dissect_frame wireshark/epan/dissectors/packet-frame.c:500:11 #39 0xaf3794 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #40 0xae5692 in call_dissector_work wireshark/epan/packet.c:691:9 #41 0xaefb1b in call_dissector_only wireshark/epan/packet.c:2662:8 #42 0xae09f3 in call_dissector_with_data wireshark/epan/packet.c:2675:8 #43 0xadffde in dissect_record wireshark/epan/packet.c:501:3 #44 0xab6d0d in epan_dissect_run_with_taps wireshark/epan/epan.c:373:2 #45 0x53c91b in process_packet wireshark/tshark.c:3728:5 #46 0x535d90 in load_cap_file wireshark/tshark.c:3484:11 #47 0x52c1df in main wireshark/tshark.c:2197:13 Address 0x7ffc1c406210 is located in stack of thread T0 at offset 48 in frame #0 0x233fb4f in dissect_diameter_base_framed_ipv6_prefix wireshark/epan/dissectors/packet-diameter.c:504 This frame has 2 object(s): [32, 48) 'value' [64, 80) 'addr' <== Memory access at offset 48 partially underflows this variable HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext (longjmp and C++ exceptions *are* supported) SUMMARY: AddressSanitizer: stack-buffer-overflow llvm/projects/compiler-rt/lib/asan/asan_interceptors.cc:393 in __asan_memcpy Shadow bytes around the buggy address: 0x100003878bf0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x100003878c00: 00 00 00 00 f1 f1 f1 f1 04 f2 04 f3 00 00 00 00 0x100003878c10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x100003878c20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x100003878c30: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 =>0x100003878c40: 00 00[f2]f2 00 00 f3 f3 00 00 00 00 00 00 00 00 0x100003878c50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x100003878c60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x100003878c70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x100003878c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x100003878c90: 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 Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb ==4567==ABORTING --- cut --- The crash was reported at https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11792. Attached is a file which triggers the crash. Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/39003.zip |