Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.
Bug 1625056
Summary: | CVE-2018-16403 elfutils: Heap-based buffer over-read in libdw/dwarf_getabbrev.c and libwd/dwarf_hasattr.c causes crash [fedora-all] | ||
---|---|---|---|
Product: | [Fedora] Fedora | Reporter: | Sam Fowler <sfowler> |
Component: | elfutils | Assignee: | Mark Wielaard <mjw> |
Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
Severity: | low | Docs Contact: | |
Priority: | low | ||
Version: | 28 | CC: | aoliva, fche, jakub, me, mjw, sfowler |
Target Milestone: | --- | Keywords: | Security, SecurityTracking |
Target Release: | --- | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | elfutils-0.174-1.fc29 elfutils-0.174-1.fc28 | Doc Type: | Release Note |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2018-09-30 23:25:18 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
Sam Fowler
2018-09-04 04:46:28 UTC
Use the following template to for the 'fedpkg update' request to submit an update for this issue as it contains the top-level parent bug(s) as well as this tracking bug. This will ensure that all associated bugs get updated when new packages are pushed to stable. ===== # bugfix, security, enhancement, newpackage (required) type=security # testing, stable request=testing # Bug numbers: 1234,9876 bugs=1625055,1625056 # Description of your update notes=Security fix for [PUT CVEs HERE] # Enable request automation based on the stable/unstable karma thresholds autokarma=True stable_karma=3 unstable_karma=-3 # Automatically close bugs when this marked as stable close_bugs=True # Suggest that users restart after update suggest_reboot=False ====== Additionally, you may opt to use the bodhi web interface to submit updates: https://bodhi.fedoraproject.org/updates/new Reproduces on F28 with elfutils-0.173-1.fc28.x86_64: # eu-readelf -w CVE-2018-16403 2>&1 | ./asan_symbolizer.py DWARF section [ 5] '.debug_info' at offset 0x8a: [Offset] Compilation unit at offset 0: Version: 2, Abbreviation section offset: 0, Address size: 8, Offset size: 4 eu-readelf: cannot get tag of DIE at offset [b] in section '.debug_info': invalid DWARF ================================================================= ==53==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x606000000656 at pc 0x7fb7931fea62 bp 0x7ffce2f30cc0 sp 0x7ffce2f30cb0 READ of size 1 at 0x606000000656 thread T0 #0 0x7fb7931fea61 in dwarf_getabbrevattr_data (/lib64/libdw.so.1+0x37a61) #0 0x55a4827b86a1 in ?? /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:5046 #1 0x55a4827ca27f in ?? /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:11144 #2 0x55a4827d2111 in ?? /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:997 #3 0x55a4827d5a01 in ?? /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:761 #5 0x7fb79323f254 in dwfl_getmodules (/lib64/libdw.so.1+0x78254) #4 0x55a4827b5dfd in ?? /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:869 #5 0x55a4827ae848 in ?? /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:351 #8 0x7fb7927cc24a in __libc_start_main (/lib64/libc.so.6+0x2324a) #6 0x55a4827aee49 in ?? ??:0 0x606000000656 is located 0 bytes to the right of 54-byte region [0x606000000620,0x606000000656) allocated by thread T0 here: #0 0x7fb7935a6c48 in malloc (/lib64/libasan.so.5+0xeec48) #1 0x7fb792fa38b7 in convert_data /usr/src/debug/elfutils-0.173-1.fc28.x86_64/libelf/elf_getdata.c:164 #2 0x7fb792fa38b7 in __libelf_set_data_list_rdlock /usr/src/debug/elfutils-0.173-1.fc28.x86_64/libelf/elf_getdata.c:431 #3 0x7fb792fa3ce8 in __elf_getdata_rdlock /usr/src/debug/elfutils-0.173-1.fc28.x86_64/libelf/elf_getdata.c:538 #4 0x7fb7931e8960 in check_section /usr/src/debug/elfutils-0.173-1.fc28.x86_64/libdw/dwarf_begin_elf.c:167 #5 0x7fb7931e98b2 in global_read /usr/src/debug/elfutils-0.173-1.fc28.x86_64/libdw/dwarf_begin_elf.c:310 #6 0x7fb79324833e in load_dw dwfl_module_getdwarf.c:1340 #7 0x7fb7932489a7 in find_dw dwfl_module_getdwarf.c:1390 addr2line: Dwarf Error: Offset (1330118656) greater than or equal to .debug_str size (57456). addr2line: Dwarf Error: Offset (1330118656) greater than or equal to .debug_str size (57456). addr2line: Dwarf Error: Offset (1330118656) greater than or equal to .debug_str size (57456). addr2line: Dwarf Error: Offset (1330118656) greater than or equal to .debug_str size (57456). addr2line: Dwarf Error: Offset (1330118656) greater than or equal to .debug_str size (57456). addr2line: Dwarf Error: Offset (1330118656) greater than or equal to .debug_str size (57456). #7 0x55a4827c9736 in print_debug /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:10875 #8 0x55a4827d2111 in process_elf_file /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:997 #9 0x55a4827d5a01 in process_dwflmod /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:761 #11 0x7fb79323f254 in dwfl_getmodules (/lib64/libdw.so.1+0x78254) #10 0x55a4827b5dfd in process_file /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:869 #11 0x55a4827ae848 in main /usr/src/debug/elfutils-0.173-1.fc28.x86_64/src/readelf.c:351 #14 0x7fb7927cc24a in __libc_start_main (/lib64/libc.so.6+0x2324a) SUMMARY: AddressSanitizer: heap-buffer-overflow (/lib64/libdw.so.1+0x37a61) in dwarf_getabbrevattr_data Shadow bytes around the buggy address: 0x0c0c7fff8070: 00 00 00 00 00 00 00 fa fa fa fa fa 00 00 00 00 0x0c0c7fff8080: 00 00 00 fa fa fa fa fa fd fd fd fd fd fd fd fa 0x0c0c7fff8090: fa fa fa fa fd fd fd fd fd fd fd fa fa fa fa fa 0x0c0c7fff80a0: fd fd fd fd fd fd fd fa fa fa fa fa fd fd fd fd 0x0c0c7fff80b0: fd fd fd fa fa fa fa fa fd fd fd fd fd fd fd fa =>0x0c0c7fff80c0: fa fa fa fa 00 00 00 00 00 00[06]fa fa fa fa fa 0x0c0c7fff80d0: 00 00 00 00 00 00 00 fa fa fa fa fa fd fd fd fd 0x0c0c7fff80e0: fd fd fd fa fa fa fa fa fd fd fd fd fd fd fd fa 0x0c0c7fff80f0: fa fa fa fa fd fd fd fd fd fd fd fa fa fa fa fa 0x0c0c7fff8100: fd fd fd fd fd fd fd fa fa fa fa fa fd fd fd fd 0x0c0c7fff8110: fd fd fd fa fa fa fa fa fd fd fd fd fd fd fd fa elfutils-0.174-1.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2018-32c8599fe1 elfutils-0.174-1.fc29 has been pushed to the Fedora 29 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-2018-32c8599fe1 elfutils-0.174-1.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-1eec1f0d17 elfutils-0.174-1.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-2018-1eec1f0d17 elfutils-0.174-1.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report. elfutils-0.174-1.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report. |