Oval Definition:oval:org.opensuse.security:def:8907
Revision Date:2021-03-08Version:1
Title:Security update for wpa_supplicant (Important)
Description:

This update for wpa_supplicant fixes the following issues:

- CVE-2021-27803: Fixed a P2P provision discovery processing vulnerability (bsc#1182805).
Family:unixClass:patch
Status:Reference(s):1182805
CVE-2004-0801
CVE-2009-0035
CVE-2010-4267
CVE-2011-2697
CVE-2011-2722
CVE-2011-3177
CVE-2012-0804
CVE-2012-2738
CVE-2012-2944
CVE-2012-4502
CVE-2012-4503
CVE-2013-2139
CVE-2013-4325
CVE-2013-6393
CVE-2013-6402
CVE-2013-6427
CVE-2014-0021
CVE-2014-1829
CVE-2014-1830
CVE-2014-2525
CVE-2014-4607
CVE-2014-6272
CVE-2014-8169
CVE-2014-9092
CVE-2014-9130
CVE-2015-2296
CVE-2016-1567
CVE-2018-10860
CVE-2021-27803
SUSE-SU-2021:0721-1
Platform(s):openSUSE 13.2
openSUSE Leap 42.1
SUSE Cloud Compute Node for SUSE Linux Enterprise 12 5
SUSE Linux Enterprise Desktop 11 SP3
SUSE Linux Enterprise Desktop 12 SP2
SUSE Linux Enterprise Desktop 12 SP3
SUSE Linux Enterprise Desktop 12 SP4
SUSE Linux Enterprise for SAP 11 SP3
SUSE Linux Enterprise High Availability 12 SP1
SUSE Linux Enterprise High Availability 12 SP2
SUSE Linux Enterprise High Availability 12 SP3
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS
SUSE Linux Enterprise Live Patching 12
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT
SUSE Linux Enterprise Real Time Extension 12 SP2
SUSE Linux Enterprise Real Time Extension 12 SP3
SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Server 11 SP1
SUSE Linux Enterprise Server 11 SP2
SUSE Linux Enterprise Server 11 SP2-LTSS
SUSE Linux Enterprise Server 11 SP3
SUSE Linux Enterprise Server 11 SP3-LTSS
SUSE Linux Enterprise Server 11 SP4
SUSE Linux Enterprise Server 11-SECURITY
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server 12 SP1
SUSE Linux Enterprise Server 12 SP2
SUSE Linux Enterprise Server 12 SP3
SUSE Linux Enterprise Server 12 SP4
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12-LTSS
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server for SAP Applications 12 SP1
SUSE Linux Enterprise Server for SAP Applications 12 SP2
SUSE Linux Enterprise Server for SAP Applications 12-LTSS
SUSE Linux Enterprise Server for VMWare 11 SP2
SUSE Linux Enterprise Server for VMWare 11 SP3
SUSE Linux Enterprise Software Development Kit 11 SP2
SUSE Linux Enterprise Software Development Kit 11 SP3
SUSE Linux Enterprise Software Development Kit 11 SP4
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Software Development Kit 12 SP1
SUSE Linux Enterprise Software Development Kit 12 SP2
SUSE Linux Enterprise Software Development Kit 12 SP3
SUSE Linux Enterprise Software Development Kit 12 SP4
SUSE Linux Enterprise Software Development Kit 12 SP5
SUSE Linux Enterprise Workstation Extension 12
SUSE Linux Enterprise Workstation Extension 12 SP1
SUSE Linux Enterprise Workstation Extension 12 SP2
SUSE Linux Enterprise Workstation Extension 12 SP3
Product(s):
Definition Synopsis
  • SUSE Cloud Compute Node for SUSE Linux Enterprise 12 5 is installed
  • AND python-requests-2.8.1-6.9.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Desktop 11 SP3 is installed
  • AND Package Information
  • giflib-4.1.6-13.1 is installed
  • OR giflib-32bit-4.1.6-13.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Desktop 12 SP2 is installed
  • AND Package Information
  • krb5-1.12.5-40.23 is installed
  • OR krb5-32bit-1.12.5-40.23 is installed
  • OR krb5-client-1.12.5-40.23 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Desktop 12 SP3 is installed
  • AND Package Information
  • curl-7.37.0-37.3 is installed
  • OR libcurl4-7.37.0-37.3 is installed
  • OR libcurl4-32bit-7.37.0-37.3 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Desktop 12 SP4 is installed
  • AND Package Information
  • libgcrypt-1.6.1-16.62 is installed
  • OR libgcrypt20-1.6.1-16.62 is installed
  • OR libgcrypt20-32bit-1.6.1-16.62 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise for SAP 11 SP3 is installed
  • AND Package Information
  • compat-openssl097g-0.9.7g-146.22.31.1 is installed
  • OR compat-openssl097g-32bit-0.9.7g-146.22.31.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise High Availability 12 SP1 is installed
  • AND Package Information
  • ctdb-4.2.4-26 is installed
  • OR samba-4.2.4-26 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise High Availability 12 SP2 is installed
  • AND Package Information
  • cluster-md-kmp-default-4.4.103-92.56 is installed
  • OR cluster-network-kmp-default-4.4.103-92.56 is installed
  • OR dlm-kmp-default-4.4.103-92.56 is installed
  • OR gfs2-kmp-default-4.4.103-92.56 is installed
  • OR kernel-default-4.4.103-92.56 is installed
  • OR ocfs2-kmp-default-4.4.103-92.56 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise High Availability 12 SP3 is installed
  • AND Package Information
  • cluster-md-kmp-default-4.4.138-94.39 is installed
  • OR dlm-kmp-default-4.4.138-94.39 is installed
  • OR gfs2-kmp-default-4.4.138-94.39 is installed
  • OR kernel-default-4.4.138-94.39 is installed
  • OR ocfs2-kmp-default-4.4.138-94.39 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS is installed
  • AND wpa_supplicant-2.9-4.26.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Live Patching 12 is installed
  • AND Package Information
  • kgraft-patch-3_12_43-52_6-default-2-6 is installed
  • OR kgraft-patch-3_12_43-52_6-xen-2-6 is installed
  • OR kgraft-patch-SLE12_Update_5-2-6 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT is installed
  • AND Package Information
  • curl-7.37.0-37.37 is installed
  • OR libcurl4-7.37.0-37.37 is installed
  • OR libcurl4-32bit-7.37.0-37.37 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Real Time Extension 12 SP2 is installed
  • AND Package Information
  • cluster-md-kmp-rt-4.4.95-21 is installed
  • OR cluster-network-kmp-rt-4.4.95-21 is installed
  • OR dlm-kmp-rt-4.4.95-21 is installed
  • OR gfs2-kmp-rt-4.4.95-21 is installed
  • OR kernel-devel-rt-4.4.95-21 is installed
  • OR kernel-rt-4.4.95-21 is installed
  • OR kernel-rt-base-4.4.95-21 is installed
  • OR kernel-rt-devel-4.4.95-21 is installed
  • OR kernel-rt_debug-4.4.95-21 is installed
  • OR kernel-rt_debug-devel-4.4.95-21 is installed
  • OR kernel-source-rt-4.4.95-21 is installed
  • OR kernel-syms-rt-4.4.95-21 is installed
  • OR ocfs2-kmp-rt-4.4.95-21 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Real Time Extension 12 SP3 is installed
  • AND Package Information
  • cluster-md-kmp-rt-4.4.155-3.23 is installed
  • OR dlm-kmp-rt-4.4.155-3.23 is installed
  • OR gfs2-kmp-rt-4.4.155-3.23 is installed
  • OR kernel-devel-rt-4.4.155-3.23 is installed
  • OR kernel-rt-4.4.155-3.23 is installed
  • OR kernel-rt-base-4.4.155-3.23 is installed
  • OR kernel-rt-devel-4.4.155-3.23 is installed
  • OR kernel-rt_debug-4.4.155-3.23 is installed
  • OR kernel-rt_debug-devel-4.4.155-3.23 is installed
  • OR kernel-source-rt-4.4.155-3.23 is installed
  • OR kernel-syms-rt-4.4.155-3.23 is installed
  • OR ocfs2-kmp-rt-4.4.155-3.23 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 11 is installed
  • AND Package Information
  • acl-2.2.47-30.5.1 is installed
  • OR libacl-2.2.47-30.5.1 is installed
  • OR libacl-32bit-2.2.47-30.5.1 is installed
  • OR libacl-x86-2.2.47-30.5.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 11 SP1 is installed
  • AND apache2-mod_perl-2.0.4-40.19 is installed
  • Definition Synopsis
  • Release Information
  • SUSE Linux Enterprise Server 11 SP2 is installed
  • AND
  • ghostscript-fonts-other-8.62-32.34.1 is installed
  • OR ghostscript-fonts-rus-8.62-32.34.1 is installed
  • OR ghostscript-fonts-std-8.62-32.34.1 is installed
  • OR ghostscript-library-8.62-32.34.1 is installed
  • OR ghostscript-omni-8.62-32.34.1 is installed
  • OR ghostscript-x11-8.62-32.34.1 is installed
  • OR libgimpprint-4.2.7-32.34.1 is installed
  • OR Package Information
  • SUSE Linux Enterprise Server for VMWare 11 SP2 is installed
  • AND
  • ghostscript-fonts-other-8.62-32.34.1 is installed
  • OR ghostscript-fonts-rus-8.62-32.34.1 is installed
  • OR ghostscript-fonts-std-8.62-32.34.1 is installed
  • OR ghostscript-library-8.62-32.34.1 is installed
  • OR ghostscript-omni-8.62-32.34.1 is installed
  • OR ghostscript-x11-8.62-32.34.1 is installed
  • OR libgimpprint-4.2.7-32.34.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 11 SP2 is installed
  • AND Package Information
  • bind-9.6ESVR5P1-0.8.1 is installed
  • OR bind-chrootenv-9.6ESVR5P1-0.8.1 is installed
  • OR bind-doc-9.6ESVR5P1-0.8.1 is installed
  • OR bind-libs-9.6ESVR5P1-0.8.1 is installed
  • OR bind-libs-32bit-9.6ESVR5P1-0.8.1 is installed
  • OR bind-libs-x86-9.6ESVR5P1-0.8.1 is installed
  • OR bind-utils-9.6ESVR5P1-0.8.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 11 SP2-LTSS is installed
  • AND Package Information
  • MozillaFirefox-38.3.0esr-20.1 is installed
  • OR MozillaFirefox-translations-38.3.0esr-20.1 is installed
  • OR mozilla-nspr-4.10.9-11.1 is installed
  • OR mozilla-nspr-32bit-4.10.9-11.1 is installed
  • OR mozilla-nspr-devel-4.10.9-11.1 is installed
  • Definition Synopsis
  • Release Information
  • SUSE Linux Enterprise Server 11 SP3 is installed
  • AND a2ps-4.13-1326.37.1 is installed
  • OR Package Information
  • SUSE Linux Enterprise Server for VMWare 11 SP3 is installed
  • AND a2ps-4.13-1326.37.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 11 SP3 is installed
  • AND Package Information
  • evince-2.28.2-0.7.2 is installed
  • OR evince-doc-2.28.2-0.7.2 is installed
  • OR evince-lang-2.28.2-0.7.2 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 11 SP3-LTSS is installed
  • AND Package Information
  • MozillaFirefox-45.7.0esr-65.2 is installed
  • OR MozillaFirefox-translations-45.7.0esr-65.2 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 11 SP4 is installed
  • AND apache2-mod_nss-1.0.8-0.4.13.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 11-SECURITY is installed
  • AND Package Information
  • libcurl4-openssl1-7.19.7-0.40.1 is installed
  • OR libcurl4-openssl1-32bit-7.19.7-0.40.1 is installed
  • OR libcurl4-openssl1-x86-7.19.7-0.40.1 is installed
  • Definition Synopsis
  • Release Information
  • SUSE Linux Enterprise Server 12 is installed
  • AND
  • tigervnc-1.3.0-22 is installed
  • OR xorg-x11-Xvnc-1.3.0-22 is installed
  • OR Package Information
  • SUSE Linux Enterprise Server for SAP Applications 12 is installed
  • AND
  • tigervnc-1.3.0-22 is installed
  • OR xorg-x11-Xvnc-1.3.0-22 is installed
  • Definition Synopsis
  • Release Information
  • SUSE Linux Enterprise Server 12 SP1 is installed
  • AND
  • strongswan-5.1.3-22 is installed
  • OR strongswan-doc-5.1.3-22 is installed
  • OR strongswan-hmac-5.1.3-22 is installed
  • OR strongswan-ipsec-5.1.3-22 is installed
  • OR strongswan-libs0-5.1.3-22 is installed
  • OR Package Information
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1 is installed
  • AND
  • strongswan-5.1.3-22 is installed
  • OR strongswan-doc-5.1.3-22 is installed
  • OR strongswan-hmac-5.1.3-22 is installed
  • OR strongswan-ipsec-5.1.3-22 is installed
  • OR strongswan-libs0-5.1.3-22 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP1 is installed
  • AND Package Information
  • dhcp-4.3.3-9 is installed
  • OR dhcp-client-4.3.3-9 is installed
  • OR dhcp-relay-4.3.3-9 is installed
  • OR dhcp-server-4.3.3-9 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP2 is installed
  • AND Package Information
  • libdcerpc-binding0-4.4.2-38.11 is installed
  • OR libdcerpc-binding0-32bit-4.4.2-38.11 is installed
  • OR libdcerpc0-4.4.2-38.11 is installed
  • OR libdcerpc0-32bit-4.4.2-38.11 is installed
  • OR libndr-krb5pac0-4.4.2-38.11 is installed
  • OR libndr-krb5pac0-32bit-4.4.2-38.11 is installed
  • OR libndr-nbt0-4.4.2-38.11 is installed
  • OR libndr-nbt0-32bit-4.4.2-38.11 is installed
  • OR libndr-standard0-4.4.2-38.11 is installed
  • OR libndr-standard0-32bit-4.4.2-38.11 is installed
  • OR libndr0-4.4.2-38.11 is installed
  • OR libndr0-32bit-4.4.2-38.11 is installed
  • OR libnetapi0-4.4.2-38.11 is installed
  • OR libnetapi0-32bit-4.4.2-38.11 is installed
  • OR libsamba-credentials0-4.4.2-38.11 is installed
  • OR libsamba-credentials0-32bit-4.4.2-38.11 is installed
  • OR libsamba-errors0-4.4.2-38.11 is installed
  • OR libsamba-errors0-32bit-4.4.2-38.11 is installed
  • OR libsamba-hostconfig0-4.4.2-38.11 is installed
  • OR libsamba-hostconfig0-32bit-4.4.2-38.11 is installed
  • OR libsamba-passdb0-4.4.2-38.11 is installed
  • OR libsamba-passdb0-32bit-4.4.2-38.11 is installed
  • OR libsamba-util0-4.4.2-38.11 is installed
  • OR libsamba-util0-32bit-4.4.2-38.11 is installed
  • OR libsamdb0-4.4.2-38.11 is installed
  • OR libsamdb0-32bit-4.4.2-38.11 is installed
  • OR libsmbclient0-4.4.2-38.11 is installed
  • OR libsmbclient0-32bit-4.4.2-38.11 is installed
  • OR libsmbconf0-4.4.2-38.11 is installed
  • OR libsmbconf0-32bit-4.4.2-38.11 is installed
  • OR libsmbldap0-4.4.2-38.11 is installed
  • OR libsmbldap0-32bit-4.4.2-38.11 is installed
  • OR libtevent-util0-4.4.2-38.11 is installed
  • OR libtevent-util0-32bit-4.4.2-38.11 is installed
  • OR libwbclient0-4.4.2-38.11 is installed
  • OR libwbclient0-32bit-4.4.2-38.11 is installed
  • OR samba-4.4.2-38.11 is installed
  • OR samba-client-4.4.2-38.11 is installed
  • OR samba-client-32bit-4.4.2-38.11 is installed
  • OR samba-doc-4.4.2-38.11 is installed
  • OR samba-libs-4.4.2-38.11 is installed
  • OR samba-libs-32bit-4.4.2-38.11 is installed
  • OR samba-winbind-4.4.2-38.11 is installed
  • OR samba-winbind-32bit-4.4.2-38.11 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP3 is installed
  • AND yast2-3.2.36-1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP4 is installed
  • AND autofs-5.0.9-28.3 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP5 is installed
  • AND libsrtp1-1.5.2-3.2 is installed
  • Definition Synopsis
  • Release Information
  • SUSE Linux Enterprise Server 12-LTSS is installed
  • AND
  • kgraft-patch-3_12_51-52_31-default-5-2 is installed
  • OR kgraft-patch-3_12_51-52_31-xen-5-2 is installed
  • OR kgraft-patch-SLE12_Update_9-5-2 is installed
  • OR Package Information
  • SUSE Linux Enterprise Server for SAP Applications 12-LTSS is installed
  • AND
  • kgraft-patch-3_12_51-52_31-default-5-2 is installed
  • OR kgraft-patch-3_12_51-52_31-xen-5-2 is installed
  • OR kgraft-patch-SLE12_Update_9-5-2 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server 12-LTSS is installed
  • AND Package Information
  • kgraft-patch-3_12_51-52_39-default-5-2.1 is installed
  • OR kgraft-patch-3_12_51-52_39-xen-5-2.1 is installed
  • OR kgraft-patch-SLE12_Update_11-5-2.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 is installed
  • AND Package Information
  • alsa-1.0.27.2-11 is installed
  • OR alsa-docs-1.0.27.2-11 is installed
  • OR libasound2-1.0.27.2-11 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server for SAP Applications 12 is installed
  • AND Package Information
  • kgraft-patch-3_12_51-52_31-default-5-2 is installed
  • OR kgraft-patch-3_12_51-52_31-xen-5-2 is installed
  • OR kgraft-patch-SLE12_Update_9-5-2 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1 is installed
  • AND Package Information
  • evince-3.10.3-2.3 is installed
  • OR evince-lang-3.10.3-2.3 is installed
  • OR libevdocument3-4-3.10.3-2.3 is installed
  • OR libevview3-3-3.10.3-2.3 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2 is installed
  • AND Package Information
  • kgraft-patch-4_4_114-92_67-default-4-2 is installed
  • OR kgraft-patch-SLE12-SP2_Update_19-4-2 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Software Development Kit 11 SP2 is installed
  • AND Package Information
  • php53-devel-5.3.8-0.43.1 is installed
  • OR php53-imap-5.3.8-0.43.1 is installed
  • OR php53-posix-5.3.8-0.43.1 is installed
  • OR php53-readline-5.3.8-0.43.1 is installed
  • OR php53-sockets-5.3.8-0.43.1 is installed
  • OR php53-sqlite-5.3.8-0.43.1 is installed
  • OR php53-tidy-5.3.8-0.43.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Software Development Kit 11 SP3 is installed
  • AND Package Information
  • bind-9.9.6P1-0.22.1 is installed
  • OR bind-devel-9.9.6P1-0.22.1 is installed
  • OR bind-devel-32bit-9.9.6P1-0.22.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Software Development Kit 11 SP4 is installed
  • AND augeas-devel-0.9.0-3.15.1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Software Development Kit 12 is installed
  • AND Package Information
  • gimp-devel-2.8.10-1 is installed
  • OR libgimp-2_0-0-2.8.10-1 is installed
  • OR libgimpui-2_0-0-2.8.10-1 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Software Development Kit 12 SP1 is installed
  • AND Package Information
  • ImageMagick-6.8.8.1-8 is installed
  • OR ImageMagick-devel-6.8.8.1-8 is installed
  • OR libMagick++-6_Q16-3-6.8.8.1-8 is installed
  • OR libMagick++-devel-6.8.8.1-8 is installed
  • OR perl-PerlMagick-6.8.8.1-8 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Software Development Kit 12 SP2 is installed
  • AND Package Information
  • binutils-devel-2.26.1-9.12 is installed
  • OR binutils-gold-2.26.1-9.12 is installed
  • OR cross-ppc-binutils-2.26.1-9.12 is installed
  • OR cross-spu-binutils-2.26.1-9.12 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Software Development Kit 12 SP3 is installed
  • AND augeas-devel-1.2.0-15 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Software Development Kit 12 SP4 is installed
  • AND crash-devel-7.2.1-2 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Software Development Kit 12 SP5 is installed
  • AND MozillaFirefox-devel-68.1.0-109.92 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Workstation Extension 12 is installed
  • AND lcms-1.19-17 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Workstation Extension 12 SP1 is installed
  • AND bogofilter-1.2.4-3 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Workstation Extension 12 SP2 is installed
  • AND Package Information
  • ImageMagick-6.8.8.1-33 is installed
  • OR libMagick++-6_Q16-3-6.8.8.1-33 is installed
  • OR libMagickCore-6_Q16-1-32bit-6.8.8.1-33 is installed
  • Definition Synopsis
  • SUSE Linux Enterprise Workstation Extension 12 SP3 is installed
  • AND cyrus-sasl-digestmd5-32bit-2.1.26-7 is installed
  • BACK