扫码分享
验证：
体验盒子Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=754
The following crash due to a heap-based out-of-bounds read 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 ---
==17304==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61b00001335c at pc 0x0000004507c1 bp 0x7fff09b13420 sp 0x7fff09b12bd0
READ of size 1431 at 0x61b00001335c thread T0
#0 0x4507c0 in __interceptor_strlen llvm/projects/compiler-rt/lib/asan/asan_interceptors.cc:581
#1 0x7fead8aeeb02 in g_strdup (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x65b02)
#2 0x7feae0a0b1ef in string_fvalue_set_string wireshark/epan/ftypes/ftype-string.c:51:30
#3 0x7feae09e83f8 in fvalue_set_string wireshark/epan/ftypes/ftypes.c:530:2
#4 0x7feae0867874 in proto_tree_set_string wireshark/epan/proto.c:3572:3
#5 0x7feae088ae05 in proto_tree_add_string wireshark/epan/proto.c:3478:2
#6 0x7feae088b135 in proto_tree_add_string_format_value wireshark/epan/proto.c:3492:7
#7 0x7feae213aa61 in dissect_pktc_rekey wireshark/epan/dissectors/packet-pktc.c:436:5
#8 0x7feae2139f71 in dissect_pktc wireshark/epan/dissectors/packet-pktc.c:624:16
#9 0x7feae08130d1 in call_dissector_through_handle wireshark/epan/packet.c:626:8
#10 0x7feae0805a4a in call_dissector_work wireshark/epan/packet.c:701:9
#11 0x7feae080521d in dissector_try_uint_new wireshark/epan/packet.c:1160:9
#12 0x7feae0805dc4 in dissector_try_uint wireshark/epan/packet.c:1186:9
#13 0x7feae296ebf5 in decode_udp_ports wireshark/epan/dissectors/packet-udp.c:583:7
#14 0x7feae297dc90 in dissect wireshark/epan/dissectors/packet-udp.c:1081:5
#15 0x7feae29719d0 in dissect_udp wireshark/epan/dissectors/packet-udp.c:1087:3
#16 0x7feae08130d1 in call_dissector_through_handle wireshark/epan/packet.c:626:8
#17 0x7feae0805a4a in call_dissector_work wireshark/epan/packet.c:701:9
#18 0x7feae080521d in dissector_try_uint_new wireshark/epan/packet.c:1160:9
#19 0x7feae19601db in ip_try_dissect wireshark/epan/dissectors/packet-ip.c:1978:7
#20 0x7feae19cf7c1 in dissect_ipv6 wireshark/epan/dissectors/packet-ipv6.c:2431:14
#21 0x7feae08130d1 in call_dissector_through_handle wireshark/epan/packet.c:626:8
#22 0x7feae0805a4a in call_dissector_work wireshark/epan/packet.c:701:9
#23 0x7feae080521d in dissector_try_uint_new wireshark/epan/packet.c:1160:9
#24 0x7feae0805dc4 in dissector_try_uint wireshark/epan/packet.c:1186:9
#25 0x7feae1fde9c9 in dissect_null wireshark/epan/dissectors/packet-null.c:458:12
#26 0x7feae08130d1 in call_dissector_through_handle wireshark/epan/packet.c:626:8
#27 0x7feae0805a4a in call_dissector_work wireshark/epan/packet.c:701:9
#28 0x7feae080521d in dissector_try_uint_new wireshark/epan/packet.c:1160:9
#29 0x7feae1542dd5 in dissect_frame wireshark/epan/dissectors/packet-frame.c:493:11
#30 0x7feae08130d1 in call_dissector_through_handle wireshark/epan/packet.c:626:8
#31 0x7feae0805a4a in call_dissector_work wireshark/epan/packet.c:701:9
#32 0x7feae080f58e in call_dissector_only wireshark/epan/packet.c:2674:8
#33 0x7feae0800f4f in call_dissector_with_data wireshark/epan/packet.c:2687:8
#34 0x7feae0800324 in dissect_record wireshark/epan/packet.c:509:3
#35 0x7feae07b36c9 in epan_dissect_run_with_taps wireshark/epan/epan.c:376:2
#36 0x52f11b in process_packet wireshark/tshark.c:3748:5
#37 0x52840c in load_cap_file wireshark/tshark.c:3504:11
#38 0x51e71c in main wireshark/tshark.c:2213:13
0x61b00001335c is located 0 bytes to the right of 1500-byte region [0x61b000012d80,0x61b00001335c)
allocated by thread T0 here:
#0 0x4c2148 in malloc llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:40
#1 0x7fead8ad7610 in g_malloc (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x4e610)
#2 0x7feaed2fef08 in wtap_open_offline wireshark/wiretap/file_access.c:1082:2
#3 0x52473d in cf_open wireshark/tshark.c:4215:9
#4 0x51e12d in main wireshark/tshark.c:2204:9
SUMMARY: AddressSanitizer: heap-buffer-overflow llvm/projects/compiler-rt/lib/asan/asan_interceptors.cc:581 in __interceptor_strlen
Shadow bytes around the buggy address:
0x0c367fffa610: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fffa620: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fffa630: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fffa640: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fffa650: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c367fffa660: 00 00 00 00 00 00 00 00 00 00 00[04]fa fa fa fa
0x0c367fffa670: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c367fffa680: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c367fffa690: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fffa6a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fffa6b0: 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
==17304==ABORTING
--- cut ---
The crash was reported at https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12242. Attached is a file which triggers the crash.
Proof of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/39644.zip
体验盒子
