Bug#884702: xrdp: Memory corruption in xrdp-sesman
Willem Mulder
willemm at scintilla.utwente.nl
Mon Dec 18 12:44:18 UTC 2017
Package: xrdp
Version: 0.9.4-2
Severity: important
Dear Maintainer,
xrdp 0.9.4-2 introduced a memory corruption in xrdp-sesman.
You can find the log of such a crash below.
Kind regards,
Willem Mulder
starting sesman in foreground...
sesman config:
ListenAddress: 127.0.0.1
ListenPort: 3350
EnableUserWindowManager: 1
UserWindowManager: startwm.sh
DefaultWindowManager: startwm.sh
AuthFilePath: disabled
Xvnc parameters:
Parameter 00 Xvnc
Parameter 01 -bs
Parameter 02 -nolisten
Parameter 03 tcp
Parameter 04 -localhost
Parameter 05 -dpi
Parameter 06 96
X11rdp parameters:
XOrg parameters:
Parameter 00 Xorg
Parameter 01 -config
Parameter 02 xrdp/xorg.conf
Parameter 03 -noreset
Parameter 04 -nolisten
Parameter 05 tcp
security configuration:
AllowRootLogin: 1
MaxLoginRetry: 4
AlwaysGroupCheck: 0
No TSUsersGroup defined
No TSAdminsGroup defined
session configuration:
MaxSessions: 50
X11DisplayOffset: 10
KillDisconnected: 0
IdleTimeLimit: 0
DisconnectedTimeLimit: 0
Policy: 0
SessionVariables parameters:
Parameter 00 PULSE_SCRIPT=/etc/xrdp/pulse/default.pa
[20171218-13:35:14] [DEBUG] libscp initialized
[20171218-13:35:15] [INFO ] starting xrdp-sesman with pid 2477
[20171218-13:35:15] [INFO ] listening to port 3350 on 127.0.0.1
[20171218-13:35:49] [INFO ] A connection received from ::1 port 45828
*** Error in `/usr/sbin/xrdp-sesman': malloc(): memory corruption: 0x00005616996b1ca0 ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x7230b)[0x7f2ad67ae30b]
/lib/x86_64-linux-gnu/libc.so.6(+0x7896e)[0x7f2ad67b496e]
/lib/x86_64-linux-gnu/libc.so.6(+0x7aa59)[0x7f2ad67b6a59]
/lib/x86_64-linux-gnu/libc.so.6(__libc_calloc+0x27b)[0x7f2ad67b926b]
/usr/lib/x86_64-linux-gnu/xrdp/libcommon.so.0(g_strdup+0x1d)[0x7f2ad71231cd]
/usr/lib/x86_64-linux-gnu/xrdp/libscp.so.0(scp_session_set_client_ip+0x2a)[0x7f2ad6f0d98a]
/usr/lib/x86_64-linux-gnu/xrdp/libscp.so.0(scp_v0s_accept+0x5f6)[0x7f2ad6f0e8f6]
/usr/sbin/xrdp-sesman(+0x516d)[0x56169912616d]
/usr/sbin/xrdp-sesman(+0x5f6b)[0x561699126f6b]
/usr/sbin/xrdp-sesman(+0x325e)[0x56169912425e]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1)[0x7f2ad675c561]
/usr/sbin/xrdp-sesman(+0x38aa)[0x5616991248aa]
======= Memory map: ========
561699121000-56169912c000 r-xp 00000000 fe:00 413854 /usr/sbin/xrdp-sesman
56169932c000-56169932d000 r--p 0000b000 fe:00 413854 /usr/sbin/xrdp-sesman
56169932d000-56169932e000 rw-p 0000c000 fe:00 413854 /usr/sbin/xrdp-sesman
5616996b1000-5616996d2000 rw-p 00000000 00:00 0 [heap]
7f2ad0000000-7f2ad0021000 rw-p 00000000 00:00 0
7f2ad0021000-7f2ad4000000 ---p 00000000 00:00 0
7f2ad4075000-7f2ad408b000 r-xp 00000000 fe:00 530024 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f2ad408b000-7f2ad428a000 ---p 00016000 fe:00 530024 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f2ad428a000-7f2ad428b000 r--p 00015000 fe:00 530024 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f2ad428b000-7f2ad428c000 rw-p 00016000 fe:00 530024 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f2ad428c000-7f2ad42fc000 r-xp 00000000 fe:00 525370 /lib/x86_64-linux-gnu/libpcre.so.3.13.3
7f2ad42fc000-7f2ad44fc000 ---p 00070000 fe:00 525370 /lib/x86_64-linux-gnu/libpcre.so.3.13.3
7f2ad44fc000-7f2ad44fd000 r--p 00070000 fe:00 525370 /lib/x86_64-linux-gnu/libpcre.so.3.13.3
7f2ad44fd000-7f2ad44fe000 rw-p 00071000 fe:00 525370 /lib/x86_64-linux-gnu/libpcre.so.3.13.3
7f2ad44fe000-7f2ad4523000 r-xp 00000000 fe:00 527065 /lib/x86_64-linux-gnu/libselinux.so.1
7f2ad4523000-7f2ad4722000 ---p 00025000 fe:00 527065 /lib/x86_64-linux-gnu/libselinux.so.1
7f2ad4722000-7f2ad4723000 r--p 00024000 fe:00 527065 /lib/x86_64-linux-gnu/libselinux.so.1
7f2ad4723000-7f2ad4724000 rw-p 00025000 fe:00 527065 /lib/x86_64-linux-gnu/libselinux.so.1
7f2ad4724000-7f2ad4726000 rw-p 00000000 00:00 0
7f2ad4726000-7f2ad475d000 r-xp 00000000 fe:00 528253 /lib/x86_64-linux-gnu/libnss_systemd.so.2
7f2ad475d000-7f2ad495c000 ---p 00037000 fe:00 528253 /lib/x86_64-linux-gnu/libnss_systemd.so.2
7f2ad495c000-7f2ad495f000 r--p 00036000 fe:00 528253 /lib/x86_64-linux-gnu/libnss_systemd.so.2
7f2ad495f000-7f2ad4960000 rw-p 00039000 fe:00 528253 /lib/x86_64-linux-gnu/libnss_systemd.so.2
7f2ad4960000-7f2ad4f7d000 r--s 00000000 fe:00 525235 /var/lib/sss/mc/group
7f2ad4f7d000-7f2ad4f85000 r-xp 00000000 fe:00 533263 /lib/x86_64-linux-gnu/libnss_sss.so.2
7f2ad4f85000-7f2ad5184000 ---p 00008000 fe:00 533263 /lib/x86_64-linux-gnu/libnss_sss.so.2
7f2ad5184000-7f2ad5185000 r--p 00007000 fe:00 533263 /lib/x86_64-linux-gnu/libnss_sss.so.2
7f2ad5185000-7f2ad5186000 rw-p 00008000 fe:00 533263 /lib/x86_64-linux-gnu/libnss_sss.so.2
7f2ad5186000-7f2ad5191000 r-xp 00000000 fe:00 552699 /lib/x86_64-linux-gnu/libnss_files-2.25.so
7f2ad5191000-7f2ad5390000 ---p 0000b000 fe:00 552699 /lib/x86_64-linux-gnu/libnss_files-2.25.so
7f2ad5390000-7f2ad5391000 r--p 0000a000 fe:00 552699 /lib/x86_64-linux-gnu/libnss_files-2.25.so
7f2ad5391000-7f2ad5392000 rw-p 0000b000 fe:00 552699 /lib/x86_64-linux-gnu/libnss_files-2.25.so
7f2ad5392000-7f2ad5398000 rw-p 00000000 00:00 0
7f2ad5398000-7f2ad53a3000 r-xp 00000000 fe:00 552703 /lib/x86_64-linux-gnu/libnss_nis-2.25.so
7f2ad53a3000-7f2ad55a2000 ---p 0000b000 fe:00 552703 /lib/x86_64-linux-gnu/libnss_nis-2.25.so
7f2ad55a2000-7f2ad55a3000 r--p 0000a000 fe:00 552703 /lib/x86_64-linux-gnu/libnss_nis-2.25.so
7f2ad55a3000-7f2ad55a4000 rw-p 0000b000 fe:00 552703 /lib/x86_64-linux-gnu/libnss_nis-2.25.so
7f2ad55a4000-7f2ad55b9000 r-xp 00000000 fe:00 552694 /lib/x86_64-linux-gnu/libnsl-2.25.so
7f2ad55b9000-7f2ad57b8000 ---p 00015000 fe:00 552694 /lib/x86_64-linux-gnu/libnsl-2.25.so
7f2ad57b8000-7f2ad57b9000 r--p 00014000 fe:00 552694 /lib/x86_64-linux-gnu/libnsl-2.25.so
7f2ad57b9000-7f2ad57ba000 rw-p 00015000 fe:00 552694 /lib/x86_64-linux-gnu/libnsl-2.25.so
7f2ad57ba000-7f2ad57bc000 rw-p 00000000 00:00 0
7f2ad57bc000-7f2ad57c3000 r-xp 00000000 fe:00 552695 /lib/x86_64-linux-gnu/libnss_compat-2.25.so
7f2ad57c3000-7f2ad59c2000 ---p 00007000 fe:00 552695 /lib/x86_64-linux-gnu/libnss_compat-2.25.so
7f2ad59c2000-7f2ad59c3000 r--p 00006000 fe:00 552695 /lib/x86_64-linux-gnu/libnss_compat-2.25.so
7f2ad59c3000-7f2ad59c4000 rw-p 00007000 fe:00 552695 /lib/x86_64-linux-gnu/libnss_compat-2.25.so
7f2ad5a0e000-7f2ad5a12000 r-xp 00000000 fe:00 527197 /lib/x86_64-linux-gnu/libcap-ng.so.0.0.0
7f2ad5a12000-7f2ad5c11000 ---p 00004000 fe:00 527197 /lib/x86_64-linux-gnu/libcap-ng.so.0.0.0
7f2ad5c11000-7f2ad5c12000 r--p 00003000 fe:00 527197 /lib/x86_64-linux-gnu/libcap-ng.so.0.0.0
7f2ad5c12000-7f2ad5c13000 rw-p 00004000 fe:00 527197 /lib/x86_64-linux-gnu/libcap-ng.so.0.0.0
7f2ad5c13000-7f2ad5c30000 r-xp 00000000 fe:00 526497 /lib/x86_64-linux-gnu/libaudit.so.1.0.0
7f2ad5c30000-7f2ad5e30000 ---p 0001d000 fe:00 526497 /lib/x86_64-linux-gnu/libaudit.so.1.0.0
7f2ad5e30000-7f2ad5e31000 r--p 0001d000 fe:00 526497 /lib/x86_64-linux-gnu/libaudit.so.1.0.0
7f2ad5e31000-7f2ad5e32000 rw-p 0001e000 fe:00 526497 /lib/x86_64-linux-gnu/libaudit.so.1.0.0
7f2ad5e32000-7f2ad5e3c000 rw-p 00000000 00:00 0
7f2ad5e3c000-7f2ad5e3f000 r-xp 00000000 fe:00 552690 /lib/x86_64-linux-gnu/libdl-2.25.so
7f2ad5e3f000-7f2ad603e000 ---p 00003000 fe:00 552690 /lib/x86_64-linux-gnu/libdl-2.25.so
7f2ad603e000-7f2ad603f000 r--p 00002000 fe:00 552690 /lib/x86_64-linux-gnu/libdl-2.25.so
7f2ad603f000-7f2ad6040000 rw-p 00003000 fe:00 552690 /lib/x86_64-linux-gnu/libdl-2.25.so
7f2ad6040000-7f2ad62a2000 r-xp 00000000 fe:00 396663 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
7f2ad62a2000-7f2ad64a2000 ---p 00262000 fe:00 396663 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
7f2ad64a2000-7f2ad64c0000 r--p 00262000 fe:00 396663 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
7f2ad64c0000-7f2ad64ce000 rw-p 00280000 fe:00 396663 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
7f2ad64ce000-7f2ad64d1000 rw-p 00000000 00:00 0
7f2ad64d1000-7f2ad6533000 r-xp 00000000 fe:00 396664 /usr/lib/x86_64-linux-gnu/libssl.so.1.1
7f2ad6533000-7f2ad6732000 ---p 00062000 fe:00 396664 /usr/lib/x86_64-linux-gnu/libssl.so.1.1
7f2ad6732000-7f2ad6736000 r--p 00061000 fe:00 396664 /usr/lib/x86_64-linux-gnu/libssl.so.1.1
7f2ad6736000-7f2ad673c000 rw-p 00065000 fe:00 396664 /usr/lib/x86_64-linux-gnu/libssl.so.1.1
7f2ad673c000-7f2ad68d5000 r-xp 00000000 fe:00 552581 /lib/x86_64-linux-gnu/libc-2.25.so
7f2ad68d5000-7f2ad6ad5000 ---p 00199000 fe:00 552581 /lib/x86_64-linux-gnu/libc-2.25.so
7f2ad6ad5000-7f2ad6ad9000 r--p 00199000 fe:00 552581 /lib/x86_64-linux-gnu/libc-2.25.so
7f2ad6ad9000-7f2ad6adb000 rw-p 0019d000 fe:00 552581 /lib/x86_64-linux-gnu/libc-2.25.so
7f2ad6adb000-7f2ad6adf000 rw-p 00000000 00:00 0
7f2ad6adf000-7f2ad6af8000 r-xp 00000000 fe:00 552709 /lib/x86_64-linux-gnu/libpthread-2.25.so
7f2ad6af8000-7f2ad6cf7000 ---p 00019000 fe:00 552709 /lib/x86_64-linux-gnu/libpthread-2.25.so
7f2ad6cf7000-7f2ad6cf8000 r--p 00018000 fe:00 552709 /lib/x86_64-linux-gnu/libpthread-2.25.so
7f2ad6cf8000-7f2ad6cf9000 rw-p 00019000 fe:00 552709 /lib/x86_64-linux-gnu/libpthread-2.25.so
7f2ad6cf9000-7f2ad6cfd000 rw-p 00000000 00:00 0
7f2ad6cfd000-7f2ad6d0a000 r-xp 00000000 fe:00 526625 /lib/x86_64-linux-gnu/libpam.so.0.83.1
7f2ad6d0a000-7f2ad6f09000 ---p 0000d000 fe:00 526625 /lib/x86_64-linux-gnu/libpam.so.0.83.1
7f2ad6f09000-7f2ad6f0a000 r--p 0000c000 fe:00 526625 /lib/x86_64-linux-gnu/libpam.so.0.83.1
7f2ad6f0a000-7f2ad6f0b000 rw-p 0000d000 fe:00 526625 /lib/x86_64-linux-gnu/libpam.so.0.83.1
7f2ad6f0b000-7f2ad6f15000 r-xp 00000000 fe:00 567090 /usr/lib/x86_64-linux-gnu/xrdp/libscp.so.0.0.0
7f2ad6f15000-7f2ad7115000 ---p 0000a000 fe:00 567090 /usr/lib/x86_64-linux-gnu/xrdp/libscp.so.0.0.0
7f2ad7115000-7f2ad7116000 r--p 0000a000 fe:00 567090 /usr/lib/x86_64-linux-gnu/xrdp/libscp.so.0.0.0
7f2ad7116000-7f2ad7117000 rw-p 0000b000 fe:00 567090 /usr/lib/x86_64-linux-gnu/xrdp/libscp.so.0.0.0
7f2ad7117000-7f2ad712f000 r-xp 00000000 fe:00 567086 /usr/lib/x86_64-linux-gnu/xrdp/libcommon.so.0.0.0
7f2ad712f000-7f2ad732f000 ---p 00018000 fe:00 567086 /usr/lib/x86_64-linux-gnu/xrdp/libcommon.so.0.0.0
7f2ad732f000-7f2ad7330000 r--p 00018000 fe:00 567086 /usr/lib/x86_64-linux-gnu/xrdp/libcommon.so.0.0.0
7f2ad7330000-7f2ad7331000 rw-p 00019000 fe:00 567086 /usr/lib/x86_64-linux-gnu/xrdp/libcommon.so.0.0.0
7f2ad7331000-7f2ad7354000 r-xp 00000000 fe:00 533784 /lib/x86_64-linux-gnu/ld-2.25.so
7f2ad7364000-7f2ad74ff000 r--p 00000000 fe:00 408304 /usr/lib/locale/locale-archive
7f2ad74ff000-7f2ad7506000 rw-p 00000000 00:00 0
7f2ad7517000-7f2ad7518000 rw-p 00000000 00:00 0
7f2ad7518000-7f2ad751f000 r--s 00000000 fe:00 478922 /usr/lib/x86_64-linux-gnu/gconv/gconv-modules.cache
7f2ad751f000-7f2ad7550000 r--p 00000000 fe:00 397836 /usr/lib/locale/C.UTF-8/LC_CTYPE
7f2ad7550000-7f2ad7553000 rw-p 00000000 00:00 0
7f2ad7553000-7f2ad7554000 r--p 00022000 fe:00 533784 /lib/x86_64-linux-gnu/ld-2.25.so
7f2ad7554000-7f2ad7555000 rw-p 00023000 fe:00 533784 /lib/x86_64-linux-gnu/ld-2.25.so
7f2ad7555000-7f2ad7556000 rw-p 00000000 00:00 0
7ffc5b32c000-7ffc5b34d000 rw-p 00000000 00:00 0 [stack]
7ffc5b3c5000-7ffc5b3c8000 r--p 00000000 00:00 0 [vvar]
7ffc5b3c8000-7ffc5b3ca000 r-xp 00000000 00:00 0 [vdso]
Aborted
-- System Information:
Debian Release: buster/sid
APT prefers testing
APT policy: (700, 'testing'), (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.13.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_GB.UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_GB.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages xrdp depends on:
ii adduser 3.116
ii libc6 2.25-3
ii libfuse2 2.9.7-1
ii libjpeg62-turbo 1:1.5.2-2+b1
ii libopus0 1.2.1-1
ii libpam0g 1.1.8-3.6
ii libssl1.1 1.1.0g-2
ii libx11-6 2:1.6.4-3
ii libxfixes3 1:5.0.3-1
ii libxrandr2 2:1.5.1-1
ii lsb-base 9.20170808
ii ssl-cert 1.0.39
Versions of packages xrdp recommends:
ii fuse 2.9.7-1
ii xorgxrdp 0.9.4-2
Versions of packages xrdp suggests:
pn guacamole <none>
Versions of packages xorgxrdp depends on:
ii libc6 2.25-3
pn xorg-input-abi-24 <none>
ii xserver-xorg-core [xorg-video-abi-23] 2:1.19.5-1
Versions of packages xorgxrdp recommends:
ii xorg 1:7.7+19
Versions of packages xrdp is related to:
ii tightvncserver [vnc-server] 1:1.3.9-9
ii xserver-xorg-legacy 2:1.19.5-1
-- Configuration Files:
/etc/xrdp/reconnectwm.sh changed [not included]
/etc/xrdp/startwm.sh changed [not included]
/etc/xrdp/xrdp.ini [Errno 13] Permission denied: '/etc/xrdp/xrdp.ini'
-- no debconf information
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