Wireshark – ‘AirPDcapDecryptWPABroadcastKey’ Heap Out-of-Bounds Read (1)
Source: https://code.google.com/p/google-security-research/issues/detail?id=657 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 --- ==6158==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200035b1df at pc 0x0000004aaf85 bp 0x7ffcdca29930 sp 0x7ffcdca290e0 READ of size 16 at 0x60200035b1df thread T0 #0 0x4aaf84 in __asan_memcpy llvm/projects/compiler-rt/lib/asan/asan_interceptors.cc:393 #1 0x7fc44e6a216a in AirPDcapDecryptWPABroadcastKey wireshark/epan/crypt/airpdcap.c:454:5 #2 0x7fc44e6a0fd6 in AirPDcapRsna4WHandshake wireshark/epan/crypt/airpdcap.c:1405:21 #3 0x7fc44e698b78 in AirPDcapScanForKeys wireshark/epan/crypt/airpdcap.c:563:13 #4 0x7fc44e69749b in AirPDcapPacketProcess wireshark/epan/crypt/airpdcap.c:695:21 #5 0x7fc44f596013 in dissect_ieee80211_common wireshark/epan/dissectors/packet-ieee80211.c:17767:9 #6 0x7fc44f569dae in dissect_ieee80211 wireshark/epan/dissectors/packet-ieee80211.c:18375:10 #7 0x7fc44e4f8cc1 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #8 0x7fc44e4eb5ea in call_dissector_work wireshark/epan/packet.c:691:9 #9 0x7fc44e4f52be in call_dissector_only wireshark/epan/packet.c:2662:8 #10 0x7fc44e4e6ccf in call_dissector_with_data wireshark/epan/packet.c:2675:8 #11 0x7fc44f51c032 in dissect_wlan_radio wireshark/epan/dissectors/packet-ieee80211-radio.c:975:10 #12 0x7fc44e4f8cc1 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #13 0x7fc44e4eb5ea in call_dissector_work wireshark/epan/packet.c:691:9 #14 0x7fc44e4f52be in call_dissector_only wireshark/epan/packet.c:2662:8 #15 0x7fc44e4e6ccf in call_dissector_with_data wireshark/epan/packet.c:2675:8 #16 0x7fc44f52d965 in dissect_radiotap wireshark/epan/dissectors/packet-ieee80211-radiotap.c:1796:2 #17 0x7fc44e4f8cc1 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #18 0x7fc44e4eb5ea in call_dissector_work wireshark/epan/packet.c:691:9 #19 0x7fc44e4eadbd in dissector_try_uint_new wireshark/epan/packet.c:1148:9 #20 0x7fc44f1fa5f6 in dissect_frame wireshark/epan/dissectors/packet-frame.c:500:11 #21 0x7fc44e4f8cc1 in call_dissector_through_handle wireshark/epan/packet.c:616:8 #22 0x7fc44e4eb5ea in call_dissector_work wireshark/epan/packet.c:691:9 #23 0x7fc44e4f52be in call_dissector_only wireshark/epan/packet.c:2662:8 #24 0x7fc44e4e6ccf in call_dissector_with_data wireshark/epan/packet.c:2675:8 #25 0x7fc44e4e633b in dissect_record wireshark/epan/packet.c:501:3 #26 0x7fc44e4943c9 in epan_dissect_run_with_taps wireshark/epan/epan.c:373:2 #27 0x5264eb in process_packet wireshark/tshark.c:3728:5 #28 0x51f960 in load_cap_file wireshark/tshark.c:3484:11 #29 0x515daf in main wireshark/tshark.c:2197:13 0x60200035b1df is located 0 bytes to the right of 15-byte region [0x60200035b1d0,0x60200035b1df) allocated by thread T0 here: #0 0x4c0bc8 in malloc llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:40 #1 0x7fc446a1c610 in g_malloc (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x4e610) SUMMARY: AddressSanitizer: heap-buffer-overflow llvm/projects/compiler-rt/lib/asan/asan_interceptors.cc:393 in __asan_memcpy Shadow bytes around the buggy address: 0x0c04800635e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c04800635f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c0480063600: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c0480063610: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c0480063620: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa =>0x0c0480063630: fa fa fa fa fa fa fa fa fa fa 00[07]fa fa 00 00 0x0c0480063640: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa 00 00 0x0c0480063650: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa 00 00 0x0c0480063660: fa fa 00 00 fa fa 00 00 fa fa fd fd fa fa 01 fa 0x0c0480063670: fa fa 06 fa fa fa fd fd fa fa fd fd fa fa 00 07 0x0c0480063680: fa fa fd fd fa fa fd fd fa fa fd fd fa fa fd fa 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 ==6158==ABORTING --- cut --- The crash was reported at https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11826. Attached are two files which trigger the crash. Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/39077.zip |