Weekly Vulnerabilities Reports > June 2 to 8, 2014

EMC Documentum Content Server before 6.7 SP1 P28, 6.7 SP2 before P14, 7.0 before P15, and 7.1 before P05 allows remote authenticated users to execute arbitrary commands via shell metacharacters in arguments to unspecified methods.

EMC Documentum Content Server before 6.7 SP1 P28, 6.7 SP2 before P14, 7.0 before P15, and 7.1 before P05 allows remote authenticated users to obtain super-user privileges for system-object creation, and bypass intended restrictions on data access and server actions, via unspecified vectors.

Radio Thermostat CT80 And CT50 with firmware 1.4.64 and earlier does not restrict access to the API, which allows remote attackers to change the operation mode, wifi connection settings, temperature thresholds, and other settings via unspecified vectors.

The ATEN CN8000 remote-access unit with firmware 1.6.154 and earlier allows remote attackers to cause a denial of service via unspecified vectors.

The default configuration in the Red Hat openstack-neutron package before 2013.2.3-7 does not properly set a configuration file for rootwrap, which allows remote attackers to gain privileges via a crafted configuration file.

EMC Documentum Content Server before 6.7 SP1 P28, 6.7 SP2 before P14, 7.0 before P15, and 7.1 before P05 allows remote authenticated users to conduct Documentum Query Language (DQL) injection attacks and bypass intended restrictions on database actions via vectors involving DQL hints.

The thumbnail proxy server in EMC Documentum Digital Asset Manager (DAM) 6.5 SP3, 6.5 SP4, 6.5 SP5, and 6.5 SP6 before P13 allows remote attackers to conduct Documentum Query Language (DQL) injection attacks and bypass intended restrictions on querying objects via a crafted parameter in a query string.

The asn1_get_bit_der function in GNU Libtasn1 before 3.6 does not properly report an error when a negative bit length is identified, which allows context-dependent attackers to cause out-of-bounds access via crafted ASN.1 data.

Multiple SQL injection vulnerabilities in FrontAccounting (FA) before 2.3.21 allow remote attackers to execute arbitrary SQL commands via unspecified vectors.

ownCloud Server before 5.0.15 and 6.0.x before 6.0.2 allows remote attackers to conduct an LDAP injection attack via unspecified vectors, as demonstrated using a "login query."

Spoon::Cookie in the Spoon module 0.24 for Perl does not properly use the Storable::thaw function, which allows remote attackers to execute arbitrary code via a crafted request, which is not properly handled when it is deserialized.

Session::Cookie in the HTML::EP module 0.2011 for Perl does not properly use the Storable::thaw function, which allows remote attackers to execute arbitrary code via a crafted request, which is not properly handled when it is deserialized.

The App::Context module 0.01 through 0.968 for Perl does not properly use the Storable::thaw function, which allows remote attackers to execute arbitrary code via a crafted request to (1) App::Session::Cookie or (2) App::Session::HTMLHidden, which is not properly handled when it is deserialized.

Multiple SQL injection vulnerabilities in Videos Tube 1.0 allow remote attackers to execute arbitrary SQL commands via the url parameter to (1) videocat.php or (2) single.php.

ownCloud Server before 6.0.3 does not properly check permissions, which allows remote authenticated users to (1) access the contacts of other users via the address book or (2) rename files via unspecified vectors.

PHPDocX, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

SabreDAV before 1.7.11, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

PHPExcel before 1.8.0, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, does not disable external entity loading in libxml, which allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

getID3() before 1.9.8, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

SQL injection vulnerability in the Contextual Related Posts plugin before 1.8.10.2 for WordPress allows remote attackers to execute arbitrary SQL commands via unspecified vectors.

DataLife Engine (DLE) 9.7 allows remote attackers to execute arbitrary PHP code via the catlist[] parameter to engine/preview.php, which is used in a preg_replace function call with an e modifier.

Symfony 2.0.x before 2.0.22, 2.1.x before 2.1.7, and 2.2.x remote attackers to execute arbitrary PHP code via a serialized PHP object to the (1) Yaml::parse or (2) Yaml\Parser::parse function, a different vulnerability than CVE-2013-1348.

The Yaml::parse function in Symfony 2.0.x before 2.0.22 remote attackers to execute arbitrary PHP code via a PHP file, a different vulnerability than CVE-2013-1397.

SQL injection vulnerability in glossaire-aff.php in the Glossaire module 1.0 for XOOPS allows remote attackers to execute arbitrary SQL commands via the lettre parameter.

SQL injection vulnerability in the Submit_News module for PHP-Nuke 8.3 allows remote attackers to execute arbitrary SQL commands via the topics[] parameter to modules.php.

SQL injection vulnerability in the device registration component in wsf/webservice.php in CoSoSys Endpoint Protector 4 4.3.0.4 and 4.4.0.2 allows remote attackers to execute arbitrary SQL commands via unspecified parameters.

OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly restrict processing of ChangeCipherSpec messages, which allows man-in-the-middle attackers to trigger use of a zero-length master key in certain OpenSSL-to-OpenSSL communications, and consequently hijack sessions or obtain sensitive information, via a crafted TLS handshake, aka the "CCS Injection" vulnerability.

Xen 4.4.x, when running on an ARM system, does not properly check write permissions on virtual addresses, which allows local guest administrators to gain privileges via unspecified vectors.

COPA-DATA zenon DNP3 NG driver (DNP3 master) 7.10 and 7.11 through 7.11 SP0 build 10238 and zenon DNP3 Process Gateway (DNP3 outstation) 7.11 SP0 build 10238 and earlier allow remote attackers to cause a denial of service (infinite loop and process crash) by sending a crafted DNP3 packet over TCP.

libodm.a in IBM AIX 6.1 and 7.1, and VIOS 2.2.x, allows local users to overwrite arbitrary files via a symlink attack on a temporary file.

Multiple cross-site request forgery (CSRF) vulnerabilities in ownCloud Server before 6.0.3 allow remote attackers to hijack the authentication of users for requests that (1) conduct cross-site scripting (XSS) attacks, (2) modify files, or (3) rename files via unspecified vectors.

Cross-site request forgery (CSRF) vulnerability in api/sms/send-sms in the Web UI 11.010.06.01.858 on Huawei E303 modems with software 22.157.18.00.858 allows remote attackers to hijack the authentication of administrators for requests that perform API operations and send SMS messages via a request element in an XML document.

Session fixation vulnerability in DataLife Engine (DLE) 9.7 and earlier allows remote attackers to hijack web sessions via the PHPSESSID cookie.

Cross-site request forgery (CSRF) vulnerability in the WordPress Related Posts plugin before 2.6.2 for WordPress allows remote attackers to hijack the authentication of users for requests that change settings via unspecified vectors.

Cross-site request forgery (CSRF) vulnerability in he Digg Digg plugin before 5.3.5 for WordPress allows remote attackers to hijack the authentication of users for requests that modify settings via unspecified vectors.

Cross-site request forgery (CSRF) vulnerability in the Related Posts plugin before 2.7.2 for WordPress allows remote attackers to hijack the authentication of users for requests that modify settings via unspecified vectors.

Cross-site request forgery (CSRF) vulnerability in the Contextual Related Posts plugin before 1.8.7 for WordPress allows remote attackers to hijack the authentication of administrators for requests that conduct cross-site scripting (XSS) attacks via unspecified vectors.

Session fixation vulnerability in the CentralAuth extension for MediaWiki before 1.18.6, 1.19.x before 1.19.3, and 1.20.x before 1.20.1 allows remote attackers to hijack web sessions via the centralauth_Session cookie.

Session fixation vulnerability in Special:UserLogin in MediaWiki before 1.18.6, 1.19.x before 1.19.3, and 1.20.x before 1.20.1 allows remote attackers to hijack web sessions via the session_id.

Directory traversal vulnerability in the File Manager component in DevExpress ASPxFileManager Control for ASP.NET WebForms and MVC before 13.1.10 and 13.2.x before 13.2.9 allows remote authenticated users to read or write arbitrary files via a ..

Unspecified vulnerability on the IBM System Storage Virtualization Engine TS7700 allows local users to gain privileges by leveraging the TSSC service-user role to enter a crafted SSH command.

Cross-site request forgery (CSRF) vulnerability in the Profiles component in IBM Connections through 3.0.1.1 CR3 allows remote authenticated users to hijack the authentication of arbitrary users for requests that trigger follow actions.

Cross-site request forgery (CSRF) vulnerability in IBM Tivoli Identity Manager (ITIM) 5.0 before 5.0.0.15 and 5.1 before 5.1.0.15 and IBM Security Identity Manager (ISIM) 6.0 before 6.0.0.2 allows remote authenticated users to hijack the authentication of arbitrary users for requests that insert XSS sequences.

The Color Picker Wizard component in TYPO3 4.5.0 before 4.5.34, 4.7.0 before 4.7.19, 6.0.0 before 6.0.14, and 6.1.0 before 6.1.9 allows remote authenticated editors to execute arbitrary PHP code via a serialized PHP object.

phpCAS before 1.3.2 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

The Authentication component in TYPO3 6.2.0 before 6.2.3 does not properly invalidate timed out user sessions, which allows remote attackers to bypass authentication via unspecified vectors.

The Node Access Keys module 7.x-1.x before 7.x-1.1 for Drupal does not properly check permissions, which allows remote attackers to bypass access restrictions via a node listing.

Cisco Wireless LAN Controller (WLC) devices allow remote attackers to cause a denial of service (NULL pointer dereference and device restart) via a zero value in Cisco Discovery Protocol packet data that is not properly handled during SNMP polling, aka Bug ID CSCuo12321.

The HVMOP_inject_msi function in Xen 4.2.x, 4.3.x, and 4.4.x allows local guest HVM administrators to cause a denial of service (host crash) via a large number of crafted requests, which trigger an error messages to be logged.

The HVMOP_inject_msi function in Xen 4.2.x, 4.3.x, and 4.4.x does not properly check the return value from the IRQ setup check, which allows local HVM guest administrators to cause a denial of service (NULL pointer dereference and crash) via unspecified vectors.

ownCloud Server before 5.0.16 and 6.0.x before 6.0.3 does not check permissions to the files_external application, which allows remote authenticated users to add external storage via unspecified vectors.

The web framework in Cisco WebEx Meeting Server does not properly restrict the content of reply messages, which allows remote attackers to obtain sensitive information via a crafted URL, aka Bug IDs CSCuj81685, CSCuj81688, CSCuj81665, CSCuj81744, and CSCuj81661.

The web framework in VOSS in Cisco Unified Communications Domain Manager (CDM) does not properly implement access control, which allows remote attackers to obtain potentially sensitive user information by visiting an unspecified BVSMWeb web page, aka Bug IDs CSCun46071 and CSCun46101.

The web framework in VOSS in Cisco Unified Communications Domain Manager (CDM) does not properly implement access control, which allows remote attackers to enumerate accounts by visiting an unspecified BVSMWeb web page, aka Bug IDs CSCun39619 and CSCun45572.

DDSN Interactive cm3 Acora CMS 6.0.6/1a, 6.0.2/1a, 5.5.7/12b, 5.5.0/1b-p1, and possibly other versions, allows remote attackers to obtain sensitive information via a ..

DDSN Interactive cm3 Acora CMS 6.0.6/1a, 6.0.2/1a, 5.5.7/12b, 5.5.0/1b-p1, and possibly other versions, allows remote attackers to obtain sensitive information via a request to Admin/top.aspx.

DDSN Interactive cm3 Acora CMS 6.0.6/1a, 6.0.2/1a, 5.5.7/12b, 5.5.0/1b-p1, and possibly other versions, does not set the secure flag for an unspecified cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session.

DDSN Interactive cm3 Acora CMS 6.0.6/1a, 6.0.2/1a, 5.5.7/12b, 5.5.0/1b-p1, and possibly other versions, does not include the HTTPOnly flag in a Set-Cookie header for an unspecified cookie, which makes it easier for remote attackers to obtain potentially sensitive information via script access to this cookie.

The init_nss_hash function in exec/totemcrypto.c in Corosync 2.0 before 2.3 does not properly initialize the HMAC key, which allows remote attackers to cause a denial of service (crash) via a crafted packet.

The (1) asn1_read_value_type and (2) asn1_read_value functions in GNU Libtasn1 before 3.6 allows context-dependent attackers to cause a denial of service (NULL pointer dereference and crash) via a NULL value in an ivalue argument.

Directory traversal vulnerability in editor.php in Network Weathermap 0.97c and earlier allows remote attackers to read arbitrary files via a ..

Buffer overflow in A10 Networks Advanced Core Operating System (ACOS) before 2.7.0-p6 and 2.7.1 before 2.7.1-P1_55 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long session id in the URI to sys_reboot.html.

Absolute path traversal vulnerability in filemanager.php in AuraCMS 3.0 allows remote attackers to list a directory via a full pathname in the viewdir parameter.

Unspecified vulnerability in ownCloud Server before 4.0.12 allows remote attackers to obtain sensitive information via unspecified vectors related to "inclusion of the Amazon SDK testing suite." NOTE: due to lack of details, it is not clear whether the issue exists in ownCloud itself, or in Amazon SDK.

The installation routine in ownCloud Server before 4.0.14, 4.5.x before 4.5.9, and 5.0.x before 5.0.4 uses the time function to seed the generation of the PostgreSQL database user password, which makes it easier for remote attackers to guess the password via a brute force attack.

TYPO3 4.5.0 before 4.5.34, 4.7.0 before 4.7.19, 6.0.0 before 6.0.14, 6.1.0 before 6.1.9, and 6.2.0 before 6.2.3 allows remote attackers to have unspecified impact via a crafted HTTP Host header, related to "Host Spoofing."

libpam-pgsql (aka pam_pgsql) 0.7 does not properly handle a NULL value returned by the password search query, which allows remote attackers to bypass authentication via a crafted password.

The default configuration in the standalone controller quickstack manifest in openstack-foreman-installer, as used in Red Hat Enterprise Linux OpenStack Platform 4.0, disables authentication for Qpid, which allows remote attackers to gain access by connecting to Qpid.

OpenStack Identity (Keystone) before 2013.1 allows remote attackers to cause a denial of service (memory consumption and crash) via multiple long requests.

maintenance/mwdoc-filter.php in MediaWiki before 1.20.3 allows remote attackers to read arbitrary files via unspecified vectors.

settings/personal.php in ownCloud 4.5.x before 4.5.6 allows remote authenticated users to execute arbitrary PHP code via crafted mount point settings.

Unspecified vulnerability in IBM Smart Analytics System 7700 before FP 2.1.3.0 and 7710 before FP 2.1.3.0 allows local users to gain privileges via vectors related to events.

Unspecified vulnerability in IBM API Management 3.0.0.0, when basic authentication is used for APIs, allows remote attackers to bypass intended restrictions on topology access, and obtain sensitive information, via unknown vectors.

IBM Security AppScan Source 8.0 through 9.0, when the publish-assessment permission is not properly restricted for the configured database server, transmits cleartext assessment data, which allows remote attackers to obtain sensitive information by sniffing the network.

Cross-site scripting (XSS) vulnerability in editor.php in Network Weathermap before 0.97b allows remote attackers to inject arbitrary web script or HTML via the map_title parameter.

The (1) QProGetNotebookWindowHandle and (2) Ordinal132 functions in QPW160.dll in Corel Quattro Pro X6 Standard Edition 16.0.0.388 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted QPW file.

Cross-site scripting (XSS) vulnerability in filemanager.php in AuraCMS 3.0 and earlier allows remote attackers to inject arbitrary web script or HTML via the viewdir parameter.

Multiple cross-site scripting (XSS) vulnerabilities in the web client interface in Ipswitch IMail Server 12.3 and 12.4, possibly before 12.4.1.15, allow remote attackers to inject arbitrary web script or HTML via (1) the Name field in an add new contact action in the Contacts section or unspecified vectors in (2) an Add Group task in the Contacts section, (3) an add new event action in the Calendar section, or (4) the Task section.

Multiple cross-site scripting (XSS) vulnerabilities in the Transform Content Center in Bottomline Technologies Transform Foundation Server before 4.3.1 Patch 8 and 5.x before 5.2 Patch 7 allow remote attackers to inject arbitrary web script or HTML via the (1) pn parameter to index.fsp/document.pdf, (2) db or (3) referer parameter to index.fsp/index.fsp, or (4) PATH_INFO to the default URI.

Cross-site scripting (XSS) vulnerability in Nippon Institute of Agroinformatics SOY CMS 1.4.0c and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Multiple cross-site scripting (XSS) vulnerabilities in OpenNMS before 1.12.7 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the HTML export wizard in the backend module in the powermail extension before 1.6.11 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Multiple cross-site scripting (XSS) vulnerabilities in the (1) Gallery and (2) core components in ownCloud Server before 5.016 and 6.0.x before 6.0.3 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors, possibly related to the print_unescaped function.

Cross-site scripting (XSS) vulnerability in the Documents component in ownCloud Server 6.0.x before 6.0.3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, possibly related to the print_unescaped function.

Multiple cross-site scripting (XSS) vulnerabilities in the contact module (admin/modules/contact.php) in Pixie CMS 1.04 allow remote attackers to inject arbitrary web script or HTML via the (1) uemail or (2) subject parameter in the Contact form to contact/.

CRLF injection vulnerability in ownCloud Server before 4.0.8 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the url path parameter.

Multiple cross-site scripting (XSS) vulnerabilities in ownCloud Server before 4.0.8 allow remote attackers to inject arbitrary web script or HTML via the (1) readyCallback parameter to apps/files_odfviewer/src/webodf/webodf/flashput/PUT.swf, the (2) root parameter to apps/gallery/templates/index.php, or a (3) malformed query to lib/db.php.

Cross-site scripting (XSS) vulnerability in rsa_fso.swf in EMC RSA Adaptive Authentication (Hosted) 11.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in list.jsp in the Configuration utility in F5 BIG-IP LTM, AFM, Analytics, APM, ASM, GTM, and Link Controller 11.2.1 through 11.5.1, AAM 11.4.0 through 11.5.1 PEM 11.3.0 through 11.5.1, PSM 11.2.1 through 11.4.1, WebAccelerator and WOM 11.2.1 through 11.3.0, and Enterprise Manager 3.0.0 through 3.1.1 allows remote attackers to inject arbitrary web script or HTML via unspecified parameters.

Multiple cross-site scripting (XSS) vulnerabilities in Alfresco Enterprise before 4.1.6.13 allow remote attackers to inject arbitrary web script or HTML via (1) an XHTML document, (2) a <% tag, or (3) the taskId parameter to share/page/task-edit.

ZNC 1.0 allows remote authenticated users to cause a denial of service (NULL pointer reference and crash) via a crafted request to the (1) editnetwork, (2) editchan, (3) addchan, or (4) delchan page in modules/webadmin.cpp.

The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c.

COPA-DATA zenon DNP3 NG driver (DNP3 master) 7.10 and 7.11 through 7.11 SP0 build 10238 and zenon DNP3 Process Gateway (DNP3 outstation) 7.11 SP0 build 10238 and earlier allow physically proximate attackers to cause a denial of service (infinite loop and process crash) via crafted input over a serial line.

ownCloud Server before 4.5.7 does not properly check ownership of calendars, which allows remote authenticated users to read arbitrary calendars via the calid parameter to /apps/calendar/export.php.

ownCloud Server before 6.0.1 does not properly check permissions, which allows remote authenticated users to access arbitrary preview pictures via unspecified vectors.

ownCloud Server before 5.0.16 and 6.0.x before 6.0.3 does not properly check permissions, which allows remote authenticated users to read the names of files of other users by leveraging access to multiple accounts.

The document application in ownCloud Server before 6.0.3 uses sequential values for the file_id, which allows remote authenticated users to enumerate shared files via unspecified vectors.

lib/base.php in ownCloud before 4.0.8 does not properly validate the user_id session variable, which allows remote authenticated users to read arbitrary files via vectors related to WebDAV.

The query caching functionality in the Extbase Framework component in TYPO3 6.2.0 before 6.2.3 does not properly validate group permissions, which allows remote authenticated users to read arbitrary queries via unspecified vectors.

The Authentication component in TYPO3 before 6.2, when salting for password hashing is disabled, does not require knowledge of the cleartext password if the password hash is known, which allows remote attackers to bypass authentication and gain access to the backend by leveraging knowledge of a password hash.

The web framework in VOSS in Cisco Unified Communications Domain Manager (CDM) 9.0(.1) and earlier does not properly implement access control, which allows remote authenticated users to obtain potentially sensitive user information by visiting an unspecified Administration GUI web page, aka Bug IDs CSCun46045 and CSCun46116.

IBM SPSS Modeler 16.0 before 16.0.0.1 on UNIX does not properly drop group privileges, which allows local users to bypass intended file-access restrictions by leveraging (1) gid 0 or (2) root's group memberships.

Cross-site scripting (XSS) vulnerability in the layout wizard in the Grid Elements (gridelements) extension before 1.5.1 and 2.0.x before 2.0.3 for TYPO3 allows remote authenticated backend users to inject arbitrary web script or HTML via unspecified vectors.

Multiple cross-site scripting (XSS) vulnerabilities in unspecified backend components in TYPO3 4.5.0 before 4.5.34, 4.7.0 before 4.7.19, 6.0.0 before 6.0.14, 6.1.0 before 6.1.9, and 6.2.0 before 6.2.3 allow remote authenticated editors to inject arbitrary web script or HTML via unknown parameters.

Cross-site scripting (XSS) vulnerability in the address components field formatter in the AddressField Tokens module 7.x-1.x before 7.x-1.4 for Drupal allows remote authenticated users to inject arbitrary web script or HTML via an address field.

include/tests_webservers in Lynis before 1.5.5 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/lynis.*.unsorted file with an easily determined name.

include/tests_webservers in Lynis before 1.5.5 on AIX allows local users to overwrite arbitrary files via a symlink attack on a /tmp/lynis.##### file.

kernel/auditsc.c in the Linux kernel through 3.14.5, when CONFIG_AUDITSYSCALL is enabled with certain syscall rules, allows local users to obtain potentially sensitive single-bit values from kernel memory or cause a denial of service (OOPS) via a large value of a syscall number.

Cross-site scripting (XSS) vulnerability in Special:PasswordReset in MediaWiki before 1.19.16, 1.21.x before 1.21.10, and 1.22.x before 1.22.7, when wgRawHtml is enabled, allows remote attackers to inject arbitrary web script or HTML via an invalid username.

The sm_close_on_exec function in conf.c in sendmail before 8.14.9 has arguments in the wrong order, and consequently skips setting expected FD_CLOEXEC flags, which allows local users to access unintended high-numbered file descriptors via a custom mail-delivery program.