Bug 1547889
| Summary: | heap-buffer-overflow in freexl.c:383 parse_unicode_string of FreeXL 1.0.4 | ||||||
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| Product: | [Fedora] Fedora | Reporter: | Leon <leon.zhao.7> | ||||
| Component: | freexl | Assignee: | Volker Fröhlich <volker27> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | urgent | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | rawhide | CC: | carnil, volker27 | ||||
| Target Milestone: | --- | Keywords: | Reopened | ||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | freexl-1.0.5-1.fc26 freexl-1.0.5-1.el6 freexl-1.0.5-1.fc28 | Doc Type: | If docs needed, set a value | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2018-04-15 02:35:16 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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freexl-1.0.5-1.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-2eb691e7d7 freexl-1.0.5-1.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-9111777f91 freexl-1.0.5-1.el6 has been submitted as an update to Fedora EPEL 6. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-2ffe688829 freexl-1.0.5-1.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2018-5573046c3b freexl-1.0.5-1.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-5573046c3b freexl-1.0.5-1.el6 has been pushed to the Fedora EPEL 6 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-2ffe688829 freexl-1.0.5-1.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-9111777f91 freexl-1.0.5-1.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-2eb691e7d7 Hi MITRE has assigned CVE-2018-7438 for this issue. Regards, Salvatore freexl-1.0.5-1.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report. freexl-1.0.5-1.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report. freexl-1.0.5-1.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report. freexl-1.0.5-1.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report. freexl-1.0.5-1.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-62268d69c9 freexl-1.0.5-1.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-62268d69c9 freexl-1.0.5-1.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report. |
Created attachment 1399235 [details] POC file that crashing FreeXL in freexl.c:383 parse_unicode_string Description of problem: The freexl.c:383 parse_unicode_string function in FreeXL 1.0.4 may result a heap-buffer-overflow via a crafted xls file. Version-Release number of selected component (if applicable): 1.0.4 How reproducible: /examples/test_xl $POC Steps to Reproduce: /examples/test_xl $POC Actual results: Segmentation fault Expected results: Additional info: The output of test_xl with address sanitizer enabled ./test_xl /root/fuzz/freexl/freexl-freexl-383-overflow ================================================================= ==37972==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6310000108e8 at pc 0x000000403d54 bp 0x7ffcf5d84b30 sp 0x7ffcf5d84b20 READ of size 1 at 0x6310000108e8 thread T0 #0 0x403d53 in parse_unicode_string /root/asan/freexl-1.0.4/src/freexl.c:383 #1 0x415d10 in parse_biff_record /root/asan/freexl-1.0.4/src/freexl.c:3232 #2 0x419afe in read_biff_next_record /root/asan/freexl-1.0.4/src/freexl.c:3867 #3 0x41b59c in common_open /root/asan/freexl-1.0.4/src/freexl.c:4131 #4 0x41be70 in freexl_open /root/asan/freexl-1.0.4/src/freexl.c:4231 #5 0x401709 in main /root/asan/freexl-1.0.4/examples/test_xl.c:84 #6 0x7f60d534682f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f) #7 0x4013a8 in _start (/root/asan/freexl-1.0.4/examples/test_xl+0x4013a8) 0x6310000108e8 is located 0 bytes to the right of 65768-byte region [0x631000000800,0x6310000108e8) allocated by thread T0 here: #0 0x7f60d5a91602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602) #1 0x408e51 in alloc_workbook /root/asan/freexl-1.0.4/src/freexl.c:1208 #2 0x41b1fe in common_open /root/asan/freexl-1.0.4/src/freexl.c:4066 #3 0x41be70 in freexl_open /root/asan/freexl-1.0.4/src/freexl.c:4231 #4 0x401709 in main /root/asan/freexl-1.0.4/examples/test_xl.c:84 #5 0x7f60d534682f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f) SUMMARY: AddressSanitizer: heap-buffer-overflow /root/asan/freexl-1.0.4/src/freexl.c:383 parse_unicode_string Shadow bytes around the buggy address: 0x0c627fffa0c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c627fffa0d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c627fffa0e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c627fffa0f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c627fffa100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x0c627fffa110: 00 00 00 00 00 00 00 00 00 00 00 00 00[fa]fa fa 0x0c627fffa120: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c627fffa130: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c627fffa140: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c627fffa150: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c627fffa160: 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 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 ==37972==ABORTING Weiran Labs, Zhaoliang leon.zhao.7