https://bz.apache.org/bugzilla/show_bug.cgi?id=66690
Bug ID: 66690
Summary: AddressSanitizer: FPE
(/lib/x86_64-linux-gnu/libdb-5.3.so+0x13f162) in
__memp_fopen
Product: Apache httpd-2
Version: 2.4.54
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: mod_authz_dbm
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 38603
--> https://bz.apache.org/bugzilla/attachment.cgi?id=38603&action=edit
crash seed
Hello htdbm developers,
We recently conducted a fuzzing test on htdbm and discovered a FPE bug. We
would like to provide a detailed description of the bug and seek your
assistance in addressing it.
version:
htdbm: 2.4.54
gcc:gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
ubuntu: 20.04
command to reproduce:
htdbm -b FPE
FPE is attached to this report.
ASAN report:
=================================================================
==2664149==ERROR: AddressSanitizer: FPE on unknown address 0x7f36ba790162 (pc
0x7f36ba790162 bp 0x000000000000 sp 0x7ffefaed3f60 T0)
#0 0x7f36ba790162 in __memp_fopen
(/lib/x86_64-linux-gnu/libdb-5.3.so+0x13f162)
#1 0x7f36ba72fb80 in __env_mpool
(/lib/x86_64-linux-gnu/libdb-5.3.so+0xdeb80)
#2 0x7f36ba72ff1f in __env_setup
(/lib/x86_64-linux-gnu/libdb-5.3.so+0xdef1f)
#3 0x7f36ba74d563 in __db_open (/lib/x86_64-linux-gnu/libdb-5.3.so+0xfc563)
#4 0x7f36ba74780f in __db_open_pp
(/lib/x86_64-linux-gnu/libdb-5.3.so+0xf680f)
#5 0x7f36bb3a348b
(/usr/lib/x86_64-linux-gnu/apr-util-1/apr_dbm_db-1.so+0x148b)
#6 0x7f36bc49827b in apr_dbm_open_ex
(/lib/x86_64-linux-gnu/libaprutil-1.so.0+0x1427b)
#7 0x4ce592 in htdbm_open
/home/root/sp/Dataset/Httpd/httpd_aflpp/support/htdbm.c:150:16
#8 0x4ccb3d in main
/home/root/sp/Dataset/Httpd/httpd_aflpp/support/htdbm.c:395:19
#9 0x7f36bc0a3082 in __libc_start_main
/build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16
#10 0x41d58d in _start
(/home/root/sp/Fuzz/aflpp_fuzz/Httpd/document_group/mb/htdbm_1/htdbm+0x41d58d)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: FPE (/lib/x86_64-linux-gnu/libdb-5.3.so+0x13f162) in
__memp_fopen
==2664149==ABORTING
Thank you for your attention and support.
Best regards,
Michael Zhang.
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