http://bugzilla.opensuse.org/show_bug.cgi?id=1037009 Bug ID: 1037009 Summary: VUL-1: CVE-2016-10350: libarchive: bsdtar: heap-based buffer overflow read (in archive_read_format_cab_read_header) Classification: openSUSE Product: openSUSE Distribution Version: Leap 42.2 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Security Assignee: security-team@suse.de Reporter: mikhail.kasimov@gmail.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Created attachment 723281 --> http://bugzilla.opensuse.org/attachment.cgi?id=723281&action=edit CVE-2016-10350_reproducer Ref: https://blogs.gentoo.org/ago/2017/05/01/libarchive-two-heap-based-buffer-ove... ============================================================== Description: libarchive is a multi-format archive and compression library. In the 2016 I reported two heap-based buffer over-read to libarchive. They appear to have already been fixed in the trunk when I reported them; here are the details: # bsdtar -t -f $FILE ==21129==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61500000ff00 at pc 0x7fa070bd7827 bp 0x7fffb7183a30 sp 0x7fffb7183a28 READ of size 1 at 0x61500000ff00 thread T0 #0 0x7fa070bd7826 in archive_read_format_cab_read_header /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/libarchive/archive_read_support_format_cab.c:903:9 #1 0x7fa070b7145b in _archive_read_next_header2 /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/libarchive/archive_read.c:649:7 #2 0x7fa070b71100 in _archive_read_next_header /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/libarchive/archive_read.c:687:8 #3 0x514c89 in read_archive /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/tar/read.c:261:7 #4 0x51416b in tar_mode_t /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/tar/read.c:94:2 #5 0x50f1a8 in main /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/tar/bsdtar.c:803:3 #6 0x7fa06fc0461f in __libc_start_main /var/tmp/portage/sys-libs/glibc-2.22-r4/work/glibc-2.22/csu/libc-start.c:289 #7 0x41c168 in _init (/usr/bin/bsdtar+0x41c168) 0x61500000ff00 is located 0 bytes to the right of 512-byte region [0x61500000fd00,0x61500000ff00) allocated by thread T0 here: #0 0x4d4f28 in malloc /tmp/portage/sys-devel/llvm-3.9.0-r1/work/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:64 #1 0x7fa070b6c854 in __archive_read_filter_ahead /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/libarchive/archive_read.c:1436:17 #2 0x7fa070c528cd in archive_read_format_tar_bid /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/libarchive/archive_read_support_format_tar.c:310:6 #3 0x7fa070b66670 in choose_format /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/libarchive/archive_read.c:712:10 #4 0x7fa070b66670 in archive_read_open1 /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/libarchive/archive_read.c:529 #5 0x7fa070b8d2e1 in archive_read_open_filenames /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/libarchive/archive_read_open_filename.c:152:10 #6 0x7fa070b8ce8b in archive_read_open_filename /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/libarchive/archive_read_open_filename.c:109:9 #7 0x5149eb in read_archive /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/tar/read.c:223:6 #8 0x51416b in tar_mode_t /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/tar/read.c:94:2 #9 0x50f1a8 in main /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/tar/bsdtar.c:803:3 #10 0x7fa06fc0461f in __libc_start_main /var/tmp/portage/sys-libs/glibc-2.22-r4/work/glibc-2.22/csu/libc-start.c:289 SUMMARY: AddressSanitizer: heap-buffer-overflow /tmp/portage/app-arch/libarchive-3.2.2/work/libarchive-3.2.2/libarchive/archive_read_support_format_cab.c:903:9 in archive_read_format_cab_read_header Shadow bytes around the buggy address: 0x0c2a7fff9f90: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c2a7fff9fa0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c2a7fff9fb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c2a7fff9fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c2a7fff9fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x0c2a7fff9fe0:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c2a7fff9ff0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c2a7fffa000: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c2a7fffa010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c2a7fffa020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c2a7fffa030: 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 Left alloca redzone: ca Right alloca redzone: cb ==21129==ABORTING Affected version: 3.2.2 Fixed version: 3.3.0 Commit fix: N/A Reproducer: https://github.com/asarubbo/poc/blob/master/00106-libarchive-heapoverflow-ar... CVE: CVE-2016-10350 Credit: These bugs were discovered by Agostino Sarubbo of Gentoo. Timeline: 2016-12-06: bugs discovered and reported to upstream 2017-05-01: blog post about the issue 2017-05-01: CVE assigned Note: This bug was found with American Fuzzy Lop. Permalink: libarchive: two heap-based buffer overflow read ============================================================== [1] https://security-tracker.debian.org/tracker/CVE-2016-10350 [2] https://github.com/libarchive/libarchive/issues/835 (open-)SUSE: https://software.opensuse.org/package/bsdtar 3.3.1 (TW, official repo) 3.1.2 (42.{1,2}, official repo) -- You are receiving this mail because: You are on the CC list for the bug.