libdbus 1.5.x and earlier, when used in setuid or other privileged programs in X.org and possibly other products, allows local users to gain privileges and execute arbitrary code via the DBUS_SYSTEM_BUS_ADDRESS environment variable. NOTE: libdbus maintainers state that this is a vulnerability in the applications that do not cleanse environment variables, not in libdbus itself: "we do not support use of libdbus in setuid binaries that do not sanitize their environment before their first call into libdbus."

The remote NewStart CGSL host, running version MAIN 6.02, has dbus packages installed that are affected by multiple vulnerabilities:

  - Unspecified vulnerability in the match_rule_equal function in bus/signals.c in D-Bus before 1.0.2 allows     local applications to remove match rules for other applications and cause a denial of service (lost     process messages). (CVE-2006-6107)

  - dbus-daemon in D-Bus before 1.0.3, and 1.1.x before 1.1.20, recognizes send_interface attributes in allow     directives in the security policy only for fully qualified method calls, which allows local users to     bypass intended access restrictions via a method call with a NULL interface. (CVE-2008-0595)

  - The _dbus_validate_signature_with_reason function (dbus-marshal-validate.c) in D-Bus (aka DBus) before     1.2.14 uses incorrect logic to validate a basic type, which allows remote attackers to spoof a signature     via a crafted key. NOTE: this is due to an incorrect fix for CVE-2008-3834. (CVE-2009-1189)

  - libdbus 1.5.x and earlier, when used in setuid or other privileged programs in X.org and possibly other     products, allows local users to gain privileges and execute arbitrary code via the DBUS_SYSTEM_BUS_ADDRESS     environment variable. NOTE: libdbus maintainers state that this is a vulnerability in the applications     that do not cleanse environment variables, not in libdbus itself: we do not support use of libdbus in     setuid binaries that do not sanitize their environment before their first call into libdbus.
    (CVE-2012-3524)

  - The _dbus_printf_string_upper_bound function in dbus/dbus-sysdeps-unix.c in D-Bus (aka DBus) 1.4.x before     1.4.26, 1.6.x before 1.6.12, and 1.7.x before 1.7.4 allows local users to cause a denial of service     (service crash) via a crafted message. (CVE-2013-2168)

  - The dbus-daemon in D-Bus 1.2.x through 1.4.x, 1.6.x before 1.6.20, and 1.8.x before 1.8.4, sends an     AccessDenied error to the service instead of a client when the client is prohibited from accessing the     service, which allows local users to cause a denial of service (initialization failure and exit) or     possibly conduct a side-channel attack via a D-Bus message to an inactive service. (CVE-2014-3477)

  - dbus 1.3.0 before 1.6.22 and 1.8.x before 1.8.6 allows local users to cause a denial of service     (disconnect) via a certain sequence of crafted messages that cause the dbus-daemon to forward a message     containing an invalid file descriptor. (CVE-2014-3533)

  - Off-by-one error in D-Bus 1.3.0 through 1.6.x before 1.6.24 and 1.8.x before 1.8.8, when running on a     64-bit system and the max_message_unix_fds limit is set to an odd number, allows local users to cause a     denial of service (dbus-daemon crash) or possibly execute arbitrary code by sending one more file     descriptor than the limit, which triggers a heap-based buffer overflow or an assertion failure.
    (CVE-2014-3635)

  - D-Bus 1.3.0 through 1.6.x before 1.6.24 and 1.8.x before 1.8.8 allows local users to (1) cause a denial of     service (prevention of new connections and connection drop) by queuing the maximum number of file     descriptors or (2) cause a denial of service (disconnect) via multiple messages that combine to have more     than the allowed number of file descriptors for a single sendmsg call. (CVE-2014-3636)

  - D-Bus 1.3.0 through 1.6.x before 1.6.24 and 1.8.x before 1.8.8 does not properly close connections for     processes that have terminated, which allows local users to cause a denial of service via a D-bus message     containing a D-Bus connection file descriptor. (CVE-2014-3637)

  - The bus_connections_check_reply function in config-parser.c in D-Bus before 1.6.24 and 1.8.x before 1.8.8     allows local users to cause a denial of service (CPU consumption) via a large number of method calls.
    (CVE-2014-3638)

  - The dbus-daemon in D-Bus before 1.6.24 and 1.8.x before 1.8.8 does not properly close old connections,     which allows local users to cause a denial of service (incomplete connection consumption and prevention of     new connections) via a large number of incomplete connections. (CVE-2014-3639)

  - D-Bus 1.3.0 through 1.6.x before 1.6.26, 1.8.x before 1.8.10, and 1.9.x before 1.9.2 allows local users to     cause a denial of service (prevention of new connections and connection drop) by queuing the maximum     number of file descriptors. NOTE: this vulnerability exists because of an incomplete fix for     CVE-2014-3636.1. (CVE-2014-7824)

  - D-Bus 1.4.x through 1.6.x before 1.6.30, 1.8.x before 1.8.16, and 1.9.x before 1.9.10 does not validate     the source of ActivationFailure signals, which allows local users to cause a denial of service (activation     failure error returned) by leveraging a race condition involving sending an ActivationFailure signal     before systemd responds. (CVE-2015-0245)

  - An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-     daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local     attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use     this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus     clients. (CVE-2020-12049)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update fixes the following security issues :

  - CVE-2014-8148 :

  - Do not allow calls to UpdateActivationEnvironment from     uids other than the uid of the dbus-daemon. If a system     service installs unsafe security policy rules that allow     arbitrary method calls (such as CVE-2014-8148) then this     prevents memory consumption and possible privilege     escalation via UpdateActivationEnvironment.

  - CVE-2012-3524: Don't access environment variables     (bnc#912016)

The remote Solaris system is missing necessary patches to address security updates :

  - libdbus 1.5.x and earlier, when used in setuid or other     privileged programs in X.org and possibly other     products, allows local users to gain privileges and     execute arbitrary code via the DBUS_SYSTEM_BUS_ADDRESS     environment variable. NOTE: libdbus maintainers state     that this is a vulnerability in the applications that do     not cleanse environment variables, not in libdbus     itself: 'we do not support use of libdbus in setuid     binaries that do not sanitize their environment before     their first call into libdbus.' (CVE-2012-3524)

DBUS-1 was upgraded to upstream release 1.8.

This brings the version of dbus to the latest stable release from an unstable snapshot 1.7.4 that is know to have several regressions

  - Upstream changes since 1.7.4 :

  + Security fixes :

  - Do not accept an extra fd in the padding of a cmsg     message, which could lead to a 4-byte heap buffer     overrun. (CVE-2014-3635, fdo#83622; Simon McVittie)

  - Reduce default for maximum Unix file descriptors passed     per message from 1024 to 16, preventing a uid with the     default maximum number of connections from exhausting     the system bus' file descriptors under Linux's default     rlimit. Distributors or system administrators with a     restrictive fd limit may wish to reduce these limits     further. Additionally, on Linux this prevents a second     denial of service in which the dbus-daemon can be made     to exceed the maximum number of fds per sendmsg() and     disconnect the process that would have received them.
    (CVE-2014-3636, fdo#82820; Alban Crequy)

  - Disconnect connections that still have a fd pending     unmarshalling after a new configurable limit,     pending_fd_timeout (defaulting to 150 seconds), removing     the possibility of creating an abusive connection that     cannot be disconnected by setting up a circular     reference to a connection's file descriptor.
    (CVE-2014-3637, fdo#80559; Alban Crequy)

  - Reduce default for maximum pending replies per     connection from 8192 to 128, mitigating an algorithmic     complexity denial-of-service attack (CVE-2014-3638,     fdo#81053; Alban Crequy)

  - Reduce default for authentication timeout on the system     bus from 30 seconds to 5 seconds, avoiding denial of     service by using up all unauthenticated connection     slots; and when all unauthenticated connection slots are     used up, make new connection attempts block instead of     disconnecting them. (CVE-2014-3639, fdo#80919; Alban     Crequy)

  - On Linux >0 2.6.37-rc4, if sendmsg() fails with     ETOOMANYREFS, silently drop the message. This prevents     an attack in which a malicious client can make     dbus-daemon disconnect a system service, which is a     local denial of service. (fdo#80163, CVE-2014-3532;
    Alban Crequy)

  - Track remaining Unix file descriptors correctly when     more than one message in quick succession contains fds.
    This prevents another attack in which a malicious client     can make dbus-daemon disconnect a system service.
    (fdo#79694, fdo#80469, CVE-2014-3533; Alejandro     Mart&iacute;nez Su&aacute;rez, Simon McVittie, Alban     Crequy)

  - Alban Crequy at Collabora Ltd. discovered and fixed a     denial-of-service flaw in dbus-daemon, part of the     reference implementation of D-Bus. Additionally, in     highly unusual environments the same flaw could lead to     a side channel between processes that should not be able     to communicate. (CVE-2014-3477, fdo#78979)

  + Other fixes and enhancements :

  - Check for libsystemd from systemd >= 209, falling back     to the older separate libraries if not found (Umut     Tezduyar Lindskog, Simon McVittie)

  - On Linux, use prctl() to disable core dumps from a test     executable that deliberately raises SIGSEGV to test     dbus-daemon's handling of that condition (fdo#83772,     Simon McVittie)

  - Fix compilation with --enable-stats (fdo#81043, Gentoo     #507232; Alban Crequy)

  - Improve documentation for running tests on Windows     (fdo#41252, Ralf Habacker)

  - When dbus-launch --exit-with-session starts a     dbus-daemon but then cannot attach to a session, kill     the dbus-daemon as intended (fdo#74698,     &#x420;&#x43E;&#x43C;&#x430;&#x43D;
    &#x414;&#x43E;&#x43D;&#x447;&#x435;&#x43D;&#x43A;&#x43E;
    )

  - in the CMake build system, add some hints for Linux     users cross-compiling Windows D-Bus binaries to be able     to run tests under Wine (fdo#41252, Ralf Habacker)

  - add Documentation key to dbus.service (fdo#77447,     Cameron Norman)

  - in 'dbus-uuidgen --ensure', try to copy systemd's     /etc/machine-id to /var/lib/dbus/machine-id instead of     generating an entirely new ID (fdo#77941, Simon     McVittie)

  - if dbus-launch receives an X error very quickly, do not     kill unrelated processes (fdo#74698,     &#x420;&#x43E;&#x43C;&#x430;&#x43D;
    &#x414;&#x43E;&#x43D;&#x447;&#x435;&#x43D;&#x43A;&#x43E;
    )

  - on Windows, allow up to 8K connections to the     dbus-daemon, instead of the previous 64 (fdo#71297;
    Cristian Onet, Ralf Habacker)

  - cope with \r\n newlines in regression tests, since on     Windows, dbus-daemon.exe uses text mode (fdo#75863,     &#x420;&#x443;&#x441;&#x43B;&#x430;&#x43D;
    &#x418;&#x436;&#x431;&#x443;&#x43B;&#x430;&#x442;&#x43E;
    &#x432;)

  - Enhance the CMake build system to check for GLib and     compile/run a subset of the regression tests (fdo#41252,     fdo#73495; Ralf Habacker)

  - don't rely on va_copy(), use DBUS_VA_COPY() wrapper     (fdo#72840, Ralf Habacker)

  - fix compilation of systemd journal support on older     systemd versions where sd-journal.h doesn't include     syslog.h (fdo#73455, Ralf Habacker)

  - fix compilation on older MSVC versions by including     stdlib.h (fdo#73455, Ralf Habacker)

  - Allow <allow_anonymous/> to appear in an included     configuration file (fdo#73475, Matt Hoosier)

  - If the tests crash with an assertion failure, they no     longer default to blocking for a debugger to be     attached. Set DBUS_BLOCK_ON_ABORT in the environment if     you want the old behaviour.

  - To improve debuggability, the dbus-daemon and     dbus-daemon-eavesdrop tests can be run with an external     dbus-daemon by setting DBUS_TEST_DAEMON_ADDRESS in the     environment. Test-cases that require an     unusually-configured dbus-daemon are skipped.

  - don't require messages with no INTERFACE to be     dispatched (fdo#68597, Simon McVittie)

  - document 'tcp:bind=...' and 'nonce-tcp:bind=...'     (fdo#72301, Chengwei Yang)

  - define 'listenable' and 'connectable' addresses, and     discuss the difference (fdo#61303, Simon McVittie)

  - support printing Unix file descriptors in dbus-send,     dbus-monitor (fdo#70592, Robert Ancell)

  - don't install systemd units if --disable-systemd is     given (fdo#71818, Chengwei Yang)

  - don't leak memory on out-of-memory while listing     activatable or active services (fdo#71526, Radoslaw     Pajak)

  - fix undefined behaviour in a regression test (fdo#69924,     DreamNik)

  - escape Unix socket addresses correctly (fdo#46013,     Chengwei Yang)

  - on SELinux systems, don't assume that SECCLASS_DBUS,     DBUS__ACQUIRE_SVC and DBUS__SEND_MSG are numerically     equal to their values in the reference policy     (fdo#88719, osmond sun)

  - define PROCESS_QUERY_LIMITED_INFORMATION if missing from     MinGW < 4 headers (fdo#71366, Matt Fischer)

  - define WIN32_LEAN_AND_MEAN to avoid conflicts between     winsock.h and winsock2.h (fdo#71405, Matt Fischer)

  - do not return failure from _dbus_read_nonce() with no     error set, preventing a potential crash (fdo#72298,     Chengwei Yang)

  - on BSD systems, avoid some O(1)-per-process memory and     fd leaks in kqueue, preventing test failures (fdo#69332,     fdo#72213; Chengwei Yang)

  - fix warning spam on Hurd by not trying to set     SO_REUSEADDR on Unix sockets, which doesn't do anything     anyway on at least Linux and FreeBSD (fdo#69492, Simon     McVittie)

  - fix use of TCP sockets on FreeBSD and Hurd by tolerating     EINVAL from sendmsg() with SCM_CREDS (retrying with     plain send()), and looking for credentials more     correctly (fdo#69492, Simon McVittie)

  - ensure that tests run with a temporary XDG_RUNTIME_DIR     to avoid getting mixed up in XDG/systemd 'user sessions'     (fdo#61301, Simon McVittie)

  - refresh cached policy rules for existing connections     when bus configuration changes (fdo#39463, Chengwei     Yang)

  - If systemd support is enabled, libsystemd-journal is now     required.

  - When activating a non-systemd service under systemd,     annotate its stdout/stderr with its bus name in the     Journal. Known limitation: because the socket is opened     before forking, the process will still be logged as if     it had dbus-daemon's process ID and user ID. (fdo#68559,     Chengwei Yang)

  - Document more configuration elements in dbus-daemon(1)     (fdo#69125, Chengwei Yang)

  - Don't leak string arrays or fds if     dbus_message_iter_get_args_valist() unpacks them and     then encounters an error (fdo#21259, Chengwei Yang)

  - If compiled with libaudit, retain CAP_AUDIT_WRITE so we     can write disallowed method calls to the audit log,     fixing a regression in 1.7.6 (fdo#49062, Colin Walters)

  - path_namespace='/' in match rules incorrectly matched     nothing; it now matches everything. (fdo#70799, Simon     McVittie)

  - Directory change notification via dnotify on Linux is no     longer supported; it hadn't compiled successfully since     2010 in any case. If you don't have inotify (Linux) or     kqueue (*BSD), you will need to send SIGHUP to the     dbus-daemon when its configuration changes. (fdo#33001,     Chengwei Yang)

  - Compiling with --disable-userdb-cache is no longer     supported; it didn't work since at least 2008, and would     lead to an extremely slow dbus-daemon even it worked.
    (fdo#15589, fdo#17133, fdo#66947; Chengwei Yang)

  - The DBUS_DISABLE_ASSERTS CMake option didn't actually     disable most assertions. It has been renamed to     DBUS_DISABLE_ASSERT to be consistent with the Autotools     build system. (fdo#66142, Chengwei Yang)

  - --with-valgrind=auto enables Valgrind instrumentation if     and only if valgrind headers are available. The default     is still

    --with-valgrind=no. (fdo#56925, Simon McVittie)

  - Platforms with no 64-bit integer type are no longer     supported. (fdo#65429, Simon McVittie)

  - GNU make is now (documented to be) required. (fdo#48277,     Simon McVittie)

  - Full test coverage no longer requires dbus-glib,     although the tests do not exercise the shared library     (only a static copy) if dbus-glib is missing.
    (fdo#68852, Simon McVittie)

  - D-Bus Specification 0.22

  - Document GetAdtAuditSessionData() and     GetConnectionSELinuxSecurityContext() (fdo#54445, Simon)

  - Fix example .service file (fdo#66481, Chengwei Yang)

  - Don't claim D-Bus is 'low-latency' (lower than what?),     just give factual statements about it supporting async     use (fdo#65141, Justin Lee)

  - Document the contents of .service files, and the fact     that system services' filenames are constrained     (fdo#66608; Simon McVittie, Chengwei Yang)

  - Be thread-safe by default on all platforms, even if     dbus_threads_init_default() has not been called. For     compatibility with older libdbus, library users should     continue to call dbus_threads_init_default(): it is     harmless to do so. (fdo#54972, Simon McVittie)

  - Add GetConnectionCredentials() method (fdo#54445, Simon)

  - New API: dbus_setenv(), a simple wrapper around     setenv(). Note that this is not thread-safe. (fdo#39196,     Simon)

  - Add dbus-send --peer=ADDRESS (connect to a given     peer-to-peer connection, like --address=ADDRESS in     previous versions) and dbus-send --bus=ADDRESS (connect     to a given bus, like dbus-monitor

    --address=ADDRESS). dbus-send --address still exists for     backwards compatibility, but is no longer documented.
    (fdo#48816, Andrey Mazo)

  - 'dbus-daemon --nofork' is allowed on Windows again.
    (fdo#68852, Simon McVittie)

  - Avoid an infinite busy-loop if a signal interrupts     waitpid() (fdo#68945, Simon McVittie)

  - Clean up memory for parent nodes when objects are     unexported (fdo#60176, Thomas Fitzsimmons)

  - Make dbus_connection_set_route_peer_messages(x, FALSE)     behave as documented. Previously, it assumed its second     parameter was TRUE. (fdo#69165, Chengwei Yang)

  - Escape addresses containing non-ASCII characters     correctly (fdo#53499, Chengwei Yang)

  - Document <servicedir> search order correctly (fdo#66994,     Chengwei Yang)

  - Don't crash on 'dbus-send --session / x.y.z' which     regressed in 1.7.4. (fdo#65923, Chengwei Yang)

  - If malloc() returns NULL in _dbus_string_init() or     similar, don't free an invalid pointer if the string is     later freed (fdo#65959, Chengwei Yang)

  - If malloc() returns NULL in dbus_set_error(), don't     va_end() a va_list that was never va_start()ed     (fdo#66300, Chengwei Yang)

  - fix build failure with --enable-stats (fdo#66004,     Chengwei Yang)

  - fix a regression test on platforms with strict alignment     (fdo#67279, Colin Walters)

  - Avoid calling function parameters 'interface' since     certain Windows headers have a namespace-polluting macro     of that name (fdo#66493, Ivan Romanov)

  - Assorted Doxygen fixes (fdo#65755, Chengwei Yang)

  - Various thread-safety improvements to static variables     (fdo#68610, Simon McVittie)

  - Make 'make -j check' work (fdo#68852, Simon McVittie)

  - Fix a NULL pointer dereference on an unlikely error path     (fdo#69327, Sviatoslav Chagaev)

  - Improve valgrind memory pool tracking (fdo#69326,     Sviatoslav Chagaev)

  - Don't over-allocate memory in dbus-monitor (fdo#69329,     Sviatoslav Chagaev)

  - dbus-monitor can monitor dbus-daemon < 1.5.6 again     (fdo#66107, Chengwei Yang)

  - If accept4() fails with EINVAL, as it can on older Linux     kernels with newer glibc, try accept() instead of going     into a busy-loop. (fdo#69026, Chengwei Yang)

  - If socket() or socketpair() fails with EINVAL or     EPROTOTYPE, for instance on Hurd or older Linux with a     new glibc, try without SOCK_CLOEXEC. (fdo#69073; Pino     Toscano, Chengwei Yang)

  - Fix a file descriptor leak on an error code path.
    (fdo#69182, Sviatoslav Chagaev)

  - dbus-run-session: clear some unwanted environment     variables (fdo#39196, Simon)

  - dbus-run-session: compile on FreeBSD (fdo#66197,     Chengwei Yang)

  - Don't fail the autolaunch test if there is no DISPLAY     (fdo#40352, Simon)

  - Use dbus-launch from the builddir for testing, not the     installed copy (fdo#37849, Chengwei Yang)

  - Fix compilation if writev() is unavailable (fdo#69409,     Vasiliy Balyasnyy)

  - Remove broken support for LOCAL_CREDS credentials     passing, and document where each credential-passing     scheme is used (fdo#60340, Simon McVittie)

  - Make autogen.sh work on *BSD by not assuming GNU     coreutils functionality fdo#35881, fdo#69787; Chengwei     Yang)

  - dbus-monitor: be portable to NetBSD (fdo#69842, Chengwei     Yang)

  - dbus-launch: stop using non-portable asprintf     (fdo#37849, Simon)

  - Improve error reporting from the setuid activation     helper (fdo#66728, Chengwei Yang)

  - Remove unavailable command-line options from     'dbus-daemon --help' (fdo#42441, Ralf Habacker)

  - Add support for looking up local TCPv4 clients'     credentials on Windows XP via the undocumented     AllocateAndGetTcpExTableFromStack function (fdo#66060,     Ralf Habacker)

  - Fix insufficient dependency-tracking (fdo#68505, Simon     McVittie)

  - Don't include wspiapi.h, fixing a compiler warning     (fdo#68852, Simon McVittie)

  - add DBUS_ENABLE_ASSERT, DBUS_ENABLE_CHECKS for less     confusing conditionals (fdo#66142, Chengwei Yang)

  - improve verbose-mode output (fdo#63047, Colin Walters)

  - consolidate Autotools and CMake build (fdo#64875, Ralf     Habacker)

  - fix various unused variables, unusual build     configurations etc. (fdo#65712, fdo#65990, fdo#66005,     fdo#66257, fdo#69165, fdo#69410, fdo#70218; Chengwei     Yang, Vasiliy Balyasnyy)

  - dbus-cve-2014-3533.patch: Add patch for CVE-2014-3533 to     fix (fdo#63127) &bull; CVE-2012-3524: Don't access     environment variables (fdo#52202) (fdo#51521, Dave     Reisner) &bull; Remove an incorrect assertion from     DBusTransport (fdo#51657, (fdo#51406, Simon McVittie)     (fdo#51032, Simon McVittie) (fdo#34671, Simon McVittie)     &middot; Check for libpthread under CMake on Unix     (fdo#47237, Simon McVittie) spec-compliance (fdo#48580,     David Zeuthen) non-root when using OpenBSD install(1)     (fdo#48217, Antoine Jacoutot) (fdo#45896, Simon     McVittie) (fdo#39549, Simon McVittie) invent their own     'union of everything' type (fdo#11191, Simon find(1)     (fdo#33840, Simon McVittie) (fdo#46273, Alban Crequy)     again on Win32, but not on WinCE (fdo#46049, Simon     (fdo#47321, Andoni Morales Alastruey) (fdo#39231,     fdo#41012; Simon McVittie)

  - Add a regression test for fdo#38005 (fdo#39836, Simon     McVittie) a service file entry for activation     (fdo#39230, Simon McVittie) (fdo#24317, #34870; Will     Thompson, David Zeuthen, Simon McVittie) and document it     better (fdo#31818, Will Thompson) &bull; Let the bus     daemon implement more than one interface (fdo#33757,     &bull; Optimize _dbus_string_replace_len to reduce waste     (fdo#21261, (fdo#35114, Simon McVittie) &bull; Add     dbus_type_is_valid as public API (fdo#20496, Simon     McVittie) to unknown interfaces in the bus daemon     (fdo#34527, Lennart Poettering) (fdo#32245; Javier     Jard&oacute;n, Simon McVittie) &bull; Correctly give     XDG_DATA_HOME priority over XDG_DATA_DIRS (fdo#34496, in     embedded environments (fdo#19997, NB#219964; Simon     McVittie) &bull; Install the documentation, and an index     for Devhelp (fdo#13495, booleans when sending them     (fdo#16338, NB#223152; Simon McVittie) errors to     dbus-shared.h (fdo#34527, Lennart Poettering) data     (fdo#10887, Simon McVittie) .service files (fdo#19159,     Sven Herzberg) (fdo#35750, Colin Walters) (fdo#32805,     Mark Brand) which could result in a busy-loop     (fdo#32992, NB#200248; possibly &bull; Fix failure to     detect abstract socket support (fdo#29895) (fdo#32262,     NB#180486) &bull; Improve some error code paths     (fdo#29981, fdo#32264, fdo#32262, fdo#33128, fdo#33277,     fdo#33126, NB#180486) &bull; Avoid possible symlink     attacks in /tmp during compilation (fdo#32854) &bull;
    Tidy up dead code (fdo#25306, fdo#33128, fdo#34292,     NB#180486) &bull; Improve gcc malloc annotations     (fdo#32710) &bull; Documentation improvements     (fdo#11190) &bull; Avoid readdir_r, which is difficult     to use correctly (fdo#8284, fdo#15922, LP#241619) &bull;
    Cope with invalid files in session.d, system.d     (fdo#19186, &bull; Don't distribute generated files that     embed our builddir (fdo#30285, fdo#34292) (fdo#33474,     LP#381063) with lcov HTML reports and
    --enable-compiler-coverage (fdo#10887) &middot; support     credentials-passing (fdo#32542) &middot; opt-in to     thread safety (fdo#33464)

6 vulnerabilities were discovered for the dbus-1 and dbus-1-x11 packages in openSUSE versions 11.4, 12.1, and 12.2.

This update fixed CVE-2012-3524 (getenv() vulnerability), which can be used by local attackers to escalate privileges to root.

The remote host is affected by the vulnerability described in GLSA-201406-01 (D-Bus, GLib: Privilege escalation)

    When libdbus is used in a setuid program, a user can gain escalated       privileges by leveraging the DBUS_SYSTEM_BUS_ADDRESS variable. GLib can       be used in a setuid context with D-Bus, and so can trigger this       vulnerability. Please review the CVE identifier below for more details.
  Impact :

    A local attacker could gain escalated privileges and execute arbitrary       code.
  Workaround :

    There is no known workaround at this time.

It was discovered that the D-Bus library honored environment settings even when running with elevated privileges. A local attacker could possibly use this flaw to escalate their privileges, by setting specific environment variables before running a setuid or setgid application linked against the D-Bus library (libdbus).
(CVE-2012-3524)

From Red Hat Security Advisory 2012:1261 :

Updated dbus packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

D-Bus is a system for sending messages between applications. It is used for the system-wide message bus service and as a per-user-login-session messaging facility.

It was discovered that the D-Bus library honored environment settings even when running with elevated privileges. A local attacker could possibly use this flaw to escalate their privileges, by setting specific environment variables before running a setuid or setgid application linked against the D-Bus library (libdbus).
(CVE-2012-3524)

Note: With this update, libdbus ignores environment variables when used by setuid or setgid applications. The environment is not ignored when an application gains privileges via file system capabilities;
however, no application shipped in Red Hat Enterprise Linux 6 gains privileges via file system capabilities.

Red Hat would like to thank Sebastian Krahmer of the SUSE Security Team for reporting this issue.

All users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. For the update to take effect, all running instances of dbus-daemon and all running applications using the libdbus library must be restarted, or the system rebooted.

Updated glib2.0 packages fix security vulnerability :

It was discovered that the version of glib shipped with MBS 1 does not sanitise certain DBUS related environment variables. When used in combination with a setuid application which utilises dbus via glib, a local user could gain escalated privileges with a specially crafted environment. This is related to a similar issue with dbus (CVE-2012-3524).

This updated version of glib adds appropriate protection against such scenarios and also adds additional hardening when used in a setuid environment.

Updated dbus packages fix security vulnerability :

It was discovered that the D-Bus library honored environment settings even when running with elevated privileges. A local attacker could possibly use this flaw to escalate their privileges, by setting specific environment variables before running a setuid or setgid application linked against the D-Bus library (libdbus) (CVE-2012-3524).

This update fixes a vulnerability in the DBUS auto-launching feature that allowed local users to execute arbitrary programs as root.
CVE-2012-3524 has been assigned to this issue.

Resolves https://bugzilla.redhat.com/show_bug.cgi?id=857226

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

USN-1576-1 fixed vulnerabilities in DBus. The update caused a regression for certain services launched from the activation helper, and caused an unclean shutdown on upgrade. This update fixes the problem.

We apologize for the inconvenience.

Sebastian Krahmer discovered that DBus incorrectly handled environment variables when running with elevated privileges. A local attacker could possibly exploit this flaw with a setuid binary and gain root privileges.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Resolves https://bugzilla.redhat.com/show_bug.cgi?id=857226 and https://bugzilla.redhat.com/show_bug.cgi?id=857227

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Sebastian Krahmer discovered that DBus incorrectly handled environment variables when running with elevated privileges. A local attacker could possibly exploit this flaw with a setuid binary and gain root privileges.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that the D-Bus library honored environment settings even when running with elevated privileges. A local attacker could possibly use this flaw to escalate their privileges, by setting specific environment variables before running a setuid or setgid application linked against the D-Bus library (libdbus).
(CVE-2012-3524)

Note: With this update, libdbus ignores environment variables when used by setuid or setgid applications. The environment is not ignored when an application gains privileges via file system capabilities;
however, no application shipped in Red Hat Enterprise Linux 6 gains privileges via file system capabilities.

We would like to thank Sebastian Krahmer of the SUSE Security Team for reporting this issue.

For the update to take effect, all running instances of dbus-daemon and all running applications using the libdbus library must be restarted, or the system rebooted.

Updated dbus packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

D-Bus is a system for sending messages between applications. It is used for the system-wide message bus service and as a per-user-login-session messaging facility.

It was discovered that the D-Bus library honored environment settings even when running with elevated privileges. A local attacker could possibly use this flaw to escalate their privileges, by setting specific environment variables before running a setuid or setgid application linked against the D-Bus library (libdbus).
(CVE-2012-3524)

Note: With this update, libdbus ignores environment variables when used by setuid or setgid applications. The environment is not ignored when an application gains privileges via file system capabilities;
however, no application shipped in Red Hat Enterprise Linux 6 gains privileges via file system capabilities.

Red Hat would like to thank Sebastian Krahmer of the SUSE Security Team for reporting this issue.

All users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. For the update to take effect, all running instances of dbus-daemon and all running applications using the libdbus library must be restarted, or the system rebooted.

ID	Name	Product	Family	Severity
167488	NewStart CGSL MAIN 6.02 : dbus Multiple Vulnerabilities (NS-SA-2022-0093)	Nessus	NewStart CGSL Local Security Checks	medium
80985	openSUSE Security Update : dbus-1 (openSUSE-SU-2015:0111-1)	Nessus	SuSE Local Security Checks	high
80665	Oracle Solaris Third-Party Patch Update : libdbus (cve_2012_3524_permissions_privileges)	Nessus	Solaris Local Security Checks	medium
77845	openSUSE Security Update : dbus-1 (openSUSE-SU-2014:1228-1)	Nessus	SuSE Local Security Checks	medium
74795	openSUSE Security Update : dbus-1 / dbus-1-x11 (openSUSE-SU-2012:1418-1)	Nessus	SuSE Local Security Checks	medium
74772	openSUSE Security Update : dbus-1 / dbus-1-x11 (openSUSE-SU-2012:1287-1)	Nessus	SuSE Local Security Checks	medium
74258	GLSA-201406-01 : D-Bus, GLib: Privilege escalation	Nessus	Gentoo Local Security Checks	medium
69618	Amazon Linux AMI : dbus (ALAS-2012-128)	Nessus	Amazon Linux Local Security Checks	medium
68619	Oracle Linux 6 : dbus (ELSA-2012-1261)	Nessus	Oracle Linux Local Security Checks	medium
66097	Mandriva Linux Security Advisory : glib2.0 (MDVSA-2013:083)	Nessus	Mandriva Local Security Checks	medium
66084	Mandriva Linux Security Advisory : dbus (MDVSA-2013:070)	Nessus	Mandriva Local Security Checks	medium
64121	SuSE 11.2 Security Update : dbus-1 (SAT Patch Number 6733)	Nessus	SuSE Local Security Checks	medium
62789	Fedora 16 : dbus-1.4.10-4.fc16 (2012-14126)	Nessus	Fedora Local Security Checks	medium
62434	Ubuntu 8.04 LTS / 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : dbus regressions (USN-1576-2)	Nessus	Ubuntu Local Security Checks	medium
62334	Fedora 17 : dbus-1.4.10-5.fc17 / glib2-2.32.4-2.fc17 (2012-14157)	Nessus	Fedora Local Security Checks	medium
62219	Ubuntu 8.04 LTS / 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : dbus vulnerability (USN-1576-1)	Nessus	Ubuntu Local Security Checks	medium
62106	Scientific Linux Security Update : dbus on SL6.x i386/x86_64 (20120913)	Nessus	Scientific Linux Local Security Checks	medium
62087	RHEL 6 : dbus (RHSA-2012:1261)	Nessus	Red Hat Local Security Checks	medium
62082	CentOS 6 : dbus (CESA-2012:1261)	Nessus	CentOS Local Security Checks	medium

Detections

Analytics

CVE-2012-3524

high

Tenable Plugins

medium

high

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium