https://sourceware.org/bugzilla/show_bug.cgi?id=21437
Bug ID: 21437
Summary: heap-buffer-overflow in byte_get_little_endian
(binutils/elfcomm.c:148)
Product: binutils
Version: 2.28
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: brian.carpenter at gmail dot com
Target Milestone: ---
Created attachment 10023
--> https://sourceware.org/bugzilla/attachment.cgi?id=10023&action=edit
testcase
Triggered in 7a81a73 (27 April 2017). Compiled with afl-clang-fast on Debian 8
x64.
./readelf -a test000
<SNIP>
==19397==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb6102f5f at
pc 0x08220aaa bp 0xbfc05a38 sp 0xbfc05a2c
READ of size 1 at 0xb6102f5f thread T0
#0 0x8220aa9 in byte_get_little_endian
/root/binutils2/binutils/elfcomm.c:148:33
#1 0x817da69 in process_version_sections
/root/binutils2/binutils/readelf.c:10189:18
#2 0x817da69 in process_object /root/binutils2/binutils/readelf.c:17788
#3 0x8155cdd in process_file /root/binutils2/binutils/readelf.c:18183:13
#4 0x8155cdd in main /root/binutils2/binutils/readelf.c:18255
#5 0xb751b275 in __libc_start_main
/build/glibc-4LXvX6/glibc-2.24/csu/../csu/libc-start.c:291
#6 0x8060ec7 in _start (/root/binutils2/binutils/readelf+0x8060ec7)
0xb6102f5f is located 1 bytes to the left of 49-byte region
[0xb6102f60,0xb6102f91)
allocated by thread T0 here:
#0 0x811aa94 in __interceptor_malloc
(/root/binutils2/binutils/readelf+0x811aa94)
#1 0x8156dba in get_data /root/binutils2/binutils/readelf.c:392:9
SUMMARY: AddressSanitizer: heap-buffer-overflow
/root/binutils2/binutils/elfcomm.c:148:33 in byte_get_little_endian
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