From: "wcventure at 126 dot com" <sourceware-bugzilla@sourceware.org>
To: elfutils-devel@sourceware.org
Subject: [Bug general/23542] New: heap-buffer-overflow in /elfutils/src/elflint.c:2055 check_sysv_hash
Date: Fri, 17 Aug 2018 04:11:00 -0000 [thread overview]
Message-ID: <bug-23542-10460@http.sourceware.org/bugzilla/> (raw)
https://sourceware.org/bugzilla/show_bug.cgi?id=23542
Bug ID: 23542
Summary: heap-buffer-overflow in /elfutils/src/elflint.c:2055
check_sysv_hash
Product: elfutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: general
Assignee: unassigned at sourceware dot org
Reporter: wcventure at 126 dot com
CC: elfutils-devel at sourceware dot org
Target Milestone: ---
Created attachment 11190
--> https://sourceware.org/bugzilla/attachment.cgi?id=11190&action=edit
./eu-elflint --strict @@
==123497==ERROR: AddressSanitizer: heap-buffer-overflow on address
0x61300000dfd4 at pc 0x000000432311 bp 0x7ffc0e4d29c0 sp 0x7ffc0e4d29b0
READ of size 4 at 0x61300000dfd4 thread T0
#0 0x432310 in check_sysv_hash
/home/wcventure/Documents/Cproject/elfutils/src/elflint.c:2055
#1 0x432310 in check_hash
/home/wcventure/Documents/Cproject/elfutils/src/elflint.c:2355
#2 0x439613 in check_sections
/home/wcventure/Documents/Cproject/elfutils/src/elflint.c:4161
#3 0x440395 in process_elf_file
/home/wcventure/Documents/Cproject/elfutils/src/elflint.c:4739
#4 0x440395 in process_file
/home/wcventure/Documents/Cproject/elfutils/src/elflint.c:242
#5 0x402e55 in main
/home/wcventure/Documents/Cproject/elfutils/src/elflint.c:175
#6 0x7f81b5bba82f in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
#7 0x403b08 in _start
(/home/wcventure/Documents/Cproject/elfutils/build/bin/eu-elflint+0x403b08)
0x61300000dfd5 is located 0 bytes to the right of 341-byte region
[0x61300000de80,0x61300000dfd5)
allocated by thread T0 here:
#0 0x7f81b64a4602 in malloc
(/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
#1 0x7f81b61babff in convert_data
/home/wcventure/Documents/Cproject/elfutils/libelf/elf_getdata.c:164
#2 0x7f81b61babff in __libelf_set_data_list_rdlock
/home/wcventure/Documents/Cproject/elfutils/libelf/elf_getdata.c:431
SUMMARY: AddressSanitizer: heap-buffer-overflow
/home/wcventure/Documents/Cproject/elfutils/src/elflint.c:2055 check_sysv_hash
Shadow bytes around the buggy address:
0x0c267fff9ba0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c267fff9bb0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c267fff9bc0: fd fd fd fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c267fff9bd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c267fff9be0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c267fff9bf0: 00 00 00 00 00 00 00 00 00 00[05]fa fa fa fa fa
0x0c267fff9c00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c267fff9c10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c267fff9c20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c267fff9c30: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c267fff9c40: 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
==123497==ABORTING
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next reply other threads:[~2018-08-17 4:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-17 4:11 wcventure at 126 dot com [this message]
2018-08-17 20:19 ` [Bug general/23542] " mark at klomp dot org
2018-08-18 20:50 ` mark at klomp dot org
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