Public bug reported:
I create a config file in /etc/sudoers.d/
I can't use sudo from now!!
sudo su - snoop
sudo: /etc/sudoers.d/snoop is mode 0644, should be 0440
>>> /etc/sudoers.d/README: /etc/sudoers.d/snoop near line 18 <<<
sudo: parse error in /etc/sudoers.d/README near line 18
sudo: no valid sudoers sources found, quitting
*** glibc detected *** sudo: double free or corruption (!prev): 0x08a6fb38 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6(+0x6b591)[0x49c591]
/lib/tls/i686/cmov/libc.so.6(+0x6cde8)[0x49dde8]
/lib/tls/i686/cmov/libc.so.6(cfree+0x6d)[0x4a0ecd]
/lib/tls/i686/cmov/libc.so.6(fclose+0x14a)[0x48caaa]
sudo[0x805796d]
sudo[0x80589d6]
sudo[0x80564de]
sudo[0x805a314]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0x447bd6]
sudo[0x804a7c1]
======= Memory map: ========
0011b000-00126000 r-xp 00000000 fb:01 149 /lib/libpam.so.0.82.2
00126000-00127000 r--p 0000a000 fb:01 149 /lib/libpam.so.0.82.2
00127000-00128000 rw-p 0000b000 fb:01 149 /lib/libpam.so.0.82.2
00128000-00132000 r-xp 00000000 fb:01 467
/lib/tls/i686/cmov/libnss_files-2.11.1.so
00132000-00133000 r--p 00009000 fb:01 467
/lib/tls/i686/cmov/libnss_files-2.11.1.so
00133000-00134000 rw-p 0000a000 fb:01 467
/lib/tls/i686/cmov/libnss_files-2.11.1.so
001b3000-001b5000 r-xp 00000000 fb:01 461
/lib/tls/i686/cmov/libdl-2.11.1.so
001b5000-001b6000 r--p 00001000 fb:01 461
/lib/tls/i686/cmov/libdl-2.11.1.so
001b6000-001b7000 rw-p 00002000 fb:01 461
/lib/tls/i686/cmov/libdl-2.11.1.so
001e3000-001eb000 r-xp 00000000 fb:01 470
/lib/tls/i686/cmov/libnss_nis-2.11.1.so
001eb000-001ec000 r--p 00007000 fb:01 470
/lib/tls/i686/cmov/libnss_nis-2.11.1.so
001ec000-001ed000 rw-p 00008000 fb:01 470
/lib/tls/i686/cmov/libnss_nis-2.11.1.so
00431000-00584000 r-xp 00000000 fb:01 458
/lib/tls/i686/cmov/libc-2.11.1.so
00584000-00585000 ---p 00153000 fb:01 458
/lib/tls/i686/cmov/libc-2.11.1.so
00585000-00587000 r--p 00153000 fb:01 458
/lib/tls/i686/cmov/libc-2.11.1.so
00587000-00588000 rw-p 00155000 fb:01 458
/lib/tls/i686/cmov/libc-2.11.1.so
00588000-0058b000 rw-p 00000000 00:00 0
005af000-005b5000 r-xp 00000000 fb:01 465
/lib/tls/i686/cmov/libnss_compat-2.11.1.so
005b5000-005b6000 r--p 00006000 fb:01 465
/lib/tls/i686/cmov/libnss_compat-2.11.1.so
005b6000-005b7000 rw-p 00007000 fb:01 465
/lib/tls/i686/cmov/libnss_compat-2.11.1.so
006f1000-006f2000 r-xp 00000000 00:00 0 [vdso]
0073e000-00747000 r-xp 00000000 fb:01 460
/lib/tls/i686/cmov/libcrypt-2.11.1.so
00747000-00748000 r--p 00008000 fb:01 460
/lib/tls/i686/cmov/libcrypt-2.11.1.so
00748000-00749000 rw-p 00009000 fb:01 460
/lib/tls/i686/cmov/libcrypt-2.11.1.so
00749000-00770000 rw-p 00000000 00:00 0
00774000-00787000 r-xp 00000000 fb:01 464
/lib/tls/i686/cmov/libnsl-2.11.1.so
00787000-00788000 r--p 00012000 fb:01 464
/lib/tls/i686/cmov/libnsl-2.11.1.so
00788000-00789000 rw-p 00013000 fb:01 464
/lib/tls/i686/cmov/libnsl-2.11.1.so
00789000-0078b000 rw-p 00000000 00:00 0
0091d000-00938000 r-xp 00000000 fb:01 39 /lib/ld-2.11.1.so
00938000-00939000 r--p 0001a000 fb:01 39 /lib/ld-2.11.1.so
00939000-0093a000 rw-p 0001b000 fb:01 39 /lib/ld-2.11.1.so
00c02000-00c1f000 r-xp 00000000 fb:01 63 /lib/libgcc_s.so.1
00c1f000-00c20000 r--p 0001c000 fb:01 63 /lib/libgcc_s.so.1
00c20000-00c21000 rw-p 0001d000 fb:01 63 /lib/libgcc_s.so.1
08048000-08066000 r-xp 00000000 fb:01 268921 /usr/bin/sudo
08066000-08067000 r--p 0001d000 fb:01 268921 /usr/bin/sudo
08067000-08068000 rw-p 0001e000 fb:01 268921 /usr/bin/sudo
08068000-0806b000 rw-p 00000000 00:00 0
08a66000-08a87000 rw-p 00000000 00:00 0 [heap]
b7500000-b7521000 rw-p 00000000 00:00 0
b7521000-b7600000 ---p 00000000 00:00 0
b76ae000-b76ed000 r--p 00000000 fb:01 260611
/usr/lib/locale/en_US.utf8/LC_CTYPE
b76ed000-b76ee000 r--p 00000000 fb:01 269264
/usr/lib/locale/en_US.utf8/LC_NUMERIC
b76ee000-b76ef000 r--p 00000000 fb:01 269265
/usr/lib/locale/en_US.utf8/LC_TIME
b76ef000-b780d000 r--p 00000000 fb:01 269266
/usr/lib/locale/en_US.utf8/LC_COLLATE
b780d000-b780e000 r--p 00000000 fb:01 269267
/usr/lib/locale/en_US.utf8/LC_MONETARY
b780e000-b780f000 r--p 00000000 fb:01 269269
/usr/lib/locale/en_US.utf8/LC_MESSAGES/SYS_LC_MESSAGES
b780f000-b7810000 r--p 00000000 fb:01 269270
/usr/lib/locale/en_US.utf8/LC_PAPER
b7810000-b7811000 r--p 00000000 fb:01 269271
/usr/lib/locale/en_US.utf8/LC_NAME
b7811000-b7812000 r--p 00000000 fb:01 269272
/usr/lib/locale/en_US.utf8/LC_ADDRESS
b7812000-b7813000 r--p 00000000 fb:01 269273
/usr/lib/locale/en_US.utf8/LC_TELEPHONE
b7813000-b7814000 r--p 00000000 fb:01 269274
/usr/lib/locale/en_US.utf8/LC_MEASUREMENT
b7814000-b781b000 r--s 00000000 fb:01 263253
/usr/lib/gconv/gconv-modules.cache
b781b000-b781d000 rw-p 00000000 00:00 0
b7820000-b7821000 r--p 00000000 fb:01 269275
/usr/lib/locale/en_US.utf8/LC_IDENTIFICATION
b7821000-b7823000 rw-p 00000000 00:00 0
bffc4000-bffd9000 rw-p 00000000 00:00 0 [stack]
Aborted
snoop file contain:
# Snoop can run tcpdump without password
%snoop All=NOPASSWD: /usr/sbin/tcpdump
** Affects: sudo (Ubuntu)
Importance: Undecided
Status: New
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