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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3303 samba security, bug fix and enhancement update 6 October 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: samba Publisher: Red Hat Operating System: Red Hat Impact/Access: Administrator Compromise -- Remote/Unauthenticated Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Existing Account Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-20254 CVE-2020-14323 CVE-2020-14318 CVE-2020-1472 Reference: ESB-2021.3187 ESB-2021.2031 ESB-2021.1706 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:3723 https://access.redhat.com/errata/RHSA-2021:3724 Comment: This bulletin contains two (2) Red Hat security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: samba security, bug fix and enhancement update Advisory ID: RHSA-2021:3723-01 Product: Red Hat Gluster Storage Advisory URL: https://access.redhat.com/errata/RHSA-2021:3723 Issue date: 2021-10-05 CVE Names: CVE-2020-1472 CVE-2020-14318 CVE-2020-14323 CVE-2021-20254 ===================================================================== 1. Summary: Updated samba packages that fix several bugs with added enhancement are now available for Red Hat Gluster Storage 3.5 on Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Gluster 3.5 Samba on RHEL-7 - noarch, x86_64 3. Description: Red Hat Gluster Storage is a software only scale-out storage solution that provides flexible and affordable unstructured data storage. It unifies data storage and infrastructure, increases performance, and improves availability and manageability to meet enterprise-level storage challenges. Security Fix(es): * samba: Netlogon elevation of privilege vulnerability (Zerologon) (CVE-2020-1472) * samba: Missing handle permissions check in SMB1/2/3 ChangeNotify (CVE-2020-14318) * samba: Unprivileged user can crash winbind (CVE-2020-14323) * samba: Negative idmap cache entries can cause incorrect group entries in the Samba file server process token (CVE-2021-20254) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Users of samba with Red Hat Gluster Storage are advised to upgrade to these updated packages. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1879822 - CVE-2020-1472 samba: Netlogon elevation of privilege vulnerability (Zerologon) 1891685 - CVE-2020-14323 samba: Unprivileged user can crash winbind 1892631 - CVE-2020-14318 samba: Missing handle permissions check in SMB1/2/3 ChangeNotify 1949442 - CVE-2021-20254 samba: Negative idmap cache entries can cause incorrect group entries in the Samba file server process token 6. Package List: Red Hat Gluster 3.5 Samba on RHEL-7: Source: samba-4.11.6-112.el7rhgs.src.rpm noarch: samba-common-4.11.6-112.el7rhgs.noarch.rpm samba-pidl-4.11.6-112.el7rhgs.noarch.rpm x86_64: ctdb-4.11.6-112.el7rhgs.x86_64.rpm libsmbclient-4.11.6-112.el7rhgs.x86_64.rpm libsmbclient-devel-4.11.6-112.el7rhgs.x86_64.rpm libwbclient-4.11.6-112.el7rhgs.x86_64.rpm libwbclient-devel-4.11.6-112.el7rhgs.x86_64.rpm python3-samba-4.11.6-112.el7rhgs.x86_64.rpm samba-4.11.6-112.el7rhgs.x86_64.rpm samba-client-4.11.6-112.el7rhgs.x86_64.rpm samba-client-libs-4.11.6-112.el7rhgs.x86_64.rpm samba-common-libs-4.11.6-112.el7rhgs.x86_64.rpm samba-common-tools-4.11.6-112.el7rhgs.x86_64.rpm samba-debuginfo-4.11.6-112.el7rhgs.x86_64.rpm samba-devel-4.11.6-112.el7rhgs.x86_64.rpm samba-krb5-printing-4.11.6-112.el7rhgs.x86_64.rpm samba-libs-4.11.6-112.el7rhgs.x86_64.rpm samba-vfs-glusterfs-4.11.6-112.el7rhgs.x86_64.rpm samba-winbind-4.11.6-112.el7rhgs.x86_64.rpm samba-winbind-clients-4.11.6-112.el7rhgs.x86_64.rpm samba-winbind-krb5-locator-4.11.6-112.el7rhgs.x86_64.rpm samba-winbind-modules-4.11.6-112.el7rhgs.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-1472 https://access.redhat.com/security/cve/CVE-2020-14318 https://access.redhat.com/security/cve/CVE-2020-14323 https://access.redhat.com/security/cve/CVE-2021-20254 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYVvggNzjgjWX9erEAQhARw//c69FI0hSEE80vD0ntb7jviCP2GBJwVp4 tNSyW3XWzMnTHxiyXWC8Ts7uxrCWvwXgnM4WHNDB/8VzgMQCRlEknB+KQvufoNeq 5CB9WVL3wabuHVsdehcDlHIYob6X1LlCu+4LEDoRAIce/dPyxp96I63+yLHsTB7+ DAQFyHhhjIC+mSAoepTEuoe6XE4pCvy9KLhiKUGXQH9lwjwJRnT1/du5Ah+EqxDL v7hPD4sUEZ1aNfUIVtwvLbzbKPcle1OONZe2mANz1b/m+1WdQ+WOGR1qnrmgMowQ uOif7P8Ro29RkREgOyzst3QyOjRlttRo12VBLQ9dzIOHxM5EIFUOS8Cnb5M3SKNO Qf5kAvhncQzqKiqXbdU5iVXJR0070G8hTiymj5sK49jVTenAldPZN2E98IDkc8lU LtkK16SbyWw/IgbHQ4KctaZ8IyzfyFiCjOLE0bb/fqyYUmflm2F6Db0Xi3OKFVJh JB9Hrk+n1f9TR3Jb96vld+zr93N3VIKShKdLqW58yevNrGLVYkzBWLzY2SFhvGxR xokWrCkWdNriUTedQO2jIJrV7uw5Ag7NXp2ebc64x0fM+EagbKD6bZX45wyCKa8U zoYjS8wr6RyzTNm9WlW5r8qgvTYtOXwQSTMwbFRedIiV/wk4m0VDs11ad/bRQlV7 Us2K/SX9bfo= =e+Yy - -----END PGP SIGNATURE----- - ---------------------------------------------------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: samba security, bug fix and enhancement update Advisory ID: RHSA-2021:3724-01 Product: Red Hat Gluster Storage Advisory URL: https://access.redhat.com/errata/RHSA-2021:3724 Issue date: 2021-10-05 CVE Names: CVE-2021-20254 ===================================================================== 1. Summary: Updated samba packages that fix several bugs with added enhancement are now available for Red Hat Gluster Storage 3.5 on Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Gluster 3.5 Samba on RHEL-8 - noarch, x86_64 3. Description: Red Hat Gluster Storage is a software only scale-out storage solution that provides flexible and affordable unstructured data storage. It unifies data storage and infrastructure, increases performance, and improves availability and manageability to meet enterprise-level storage challenges. Security Fix(es): * samba: Negative idmap cache entries can cause incorrect group entries in the Samba file server process token (CVE-2021-20254) Users of samba with Red Hat Gluster Storage are advised to upgrade to these updated packages. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1944778 - /sbin/ldconfig: /lib64/libsmbldap.so.2 is not a symbolic link 1949442 - CVE-2021-20254 samba: Negative idmap cache entries can cause incorrect group entries in the Samba file server process token 1975274 - [Samba] Higher version of rhgs samba is required to avoid conflict with rhel-8.5 based samba version 6. Package List: Red Hat Gluster 3.5 Samba on RHEL-8: Source: libtalloc-2.3.2-5.el8rhgs.src.rpm samba-4.14.5-201.el8rhgs.src.rpm noarch: samba-common-4.14.5-201.el8rhgs.noarch.rpm samba-pidl-4.14.5-201.el8rhgs.noarch.rpm x86_64: ctdb-4.14.5-201.el8rhgs.x86_64.rpm ctdb-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm libsmbclient-4.14.5-201.el8rhgs.x86_64.rpm libsmbclient-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm libsmbclient-devel-4.14.5-201.el8rhgs.x86_64.rpm libtalloc-2.3.2-5.el8rhgs.x86_64.rpm libtalloc-debuginfo-2.3.2-5.el8rhgs.x86_64.rpm libtalloc-debugsource-2.3.2-5.el8rhgs.x86_64.rpm libtalloc-devel-2.3.2-5.el8rhgs.x86_64.rpm libwbclient-4.14.5-201.el8rhgs.x86_64.rpm libwbclient-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm libwbclient-devel-4.14.5-201.el8rhgs.x86_64.rpm python3-samba-4.14.5-201.el8rhgs.x86_64.rpm python3-samba-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm python3-talloc-2.3.2-5.el8rhgs.x86_64.rpm python3-talloc-debuginfo-2.3.2-5.el8rhgs.x86_64.rpm python3-talloc-devel-2.3.2-5.el8rhgs.x86_64.rpm samba-4.14.5-201.el8rhgs.x86_64.rpm samba-client-4.14.5-201.el8rhgs.x86_64.rpm samba-client-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-client-libs-4.14.5-201.el8rhgs.x86_64.rpm samba-client-libs-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-common-libs-4.14.5-201.el8rhgs.x86_64.rpm samba-common-libs-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-common-tools-4.14.5-201.el8rhgs.x86_64.rpm samba-common-tools-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-debugsource-4.14.5-201.el8rhgs.x86_64.rpm samba-devel-4.14.5-201.el8rhgs.x86_64.rpm samba-krb5-printing-4.14.5-201.el8rhgs.x86_64.rpm samba-krb5-printing-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-libs-4.14.5-201.el8rhgs.x86_64.rpm samba-libs-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-test-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-test-libs-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-vfs-glusterfs-4.14.5-201.el8rhgs.x86_64.rpm samba-vfs-glusterfs-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-vfs-iouring-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-winbind-4.14.5-201.el8rhgs.x86_64.rpm samba-winbind-clients-4.14.5-201.el8rhgs.x86_64.rpm samba-winbind-clients-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-winbind-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-winbind-krb5-locator-4.14.5-201.el8rhgs.x86_64.rpm samba-winbind-krb5-locator-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-winbind-modules-4.14.5-201.el8rhgs.x86_64.rpm samba-winbind-modules-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm samba-winexe-debuginfo-4.14.5-201.el8rhgs.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2021-20254 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYVvgZdzjgjWX9erEAQh6cw/9E8p3+Vu7AJBlCpSBgG2SQuYhSyAzdkwX WOXjFgfOYIdssUZ99bzNqFhCyD4JwDSm1l4gbrJ2MWNLuajNFDLG7iFTx+hfBMpn xWjQfnuEiKe2ax45HwbQsHZsBvijprUtzZrKzqNsLmkbijUEvRk3GOcJJRFelkGD 655zeXLhl3UO9GzKc8z2c7OyBXb6xSSZBmid8ETsRBOu8aJDrS9hO+CBngzt0q/1 EOLQf4jBD4d8QdJ7VVcSR0B8X7kSncTOyqDLiw1kcR94AkfvQZ7p/6HN5lnRCpYC 2a1sDPUXQeukC0DmGT+9mXKzCXVklDjZXDrF2dsELFYx8Gzv1f+DPnhiFqpLNszb dWW8MNrNPbuW1dHyIR9kWGV6OgyL7gwlsyBKKZh5WQbKPYt8IrYXvkba0bqwLLZT De/x/nBr1nwxljnhJ47+JLRP6sbhVPDQIwiNxk+qYo+pXV4fDTs9RGtyAeUQr5ef UsY02Jrt0/1WV2JXA2TaBEZYQk/sFlVisTh/vDZCvvSmPB3E5UA5KVehI07mURJc NivaMBijQ1JwRkGBMiKRZbbc1rs3sXWUWTDteQ2bI5c45w/wJYeqyde5Qg/WhXGQ xif4XA/XAoQe/DF6NtWcbkYbO+pAiH3jvkTZQuH9Cv79VEalzzZRS7QqBOBYKPKW GGpFu53LMIY= =SblO - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYV0Ov+NLKJtyKPYoAQi/6BAAlKjwaiz7xxf8F0jIoNCQzRC9pJCUJdTC bCGRxap2mVBwH6YHaEFnUrhjEDUO+1I0opfgrU6P223uc2Fygltg62f34vN4DSnB 1tLx3CnaRct3tyayXaLuF358TMN4WRijt3MpwQJl17yreMkbAAoJ6JIpqVayE1d0 yGQaxzNKtXDpAJQ3jDAIA38+S5XfW2nEXur5IX7INnhyxO51UaYahC3fvY3F8GKf psJWdyKJznsy8NQNTTzNTdPI7Ti3PZRI+OFCVFRXvfhFiEL6XgdRqlcqNr1ViJ7G iAp91hyq24cuuZgMEx696rpqbCGZiOLbZnAZDLX5uP+Tk42Hrb66EjSJq7QpyNW4 avR8csPQATwopcfnmxypBs76WhlfTQtJWaCLvBIkcz8KseAPemoSPIjZwDEMkFHW I5Qss5+RhPM44hG7giE3jjUKUIH99j7/8EYVaLzXY6dFRwmcztZbKz7Q9rhx5ADL kkxADVRVhffbpTPiEm+5BweSLlPm0qSFbLDenq9Aa2LjcrsciNDhRLxMgDpHSX2B Li/C9uxOGNNy8WImcuk5POPU2ZYHrsa4f4rXhSwpkLRsscjeE+blt69S0LTJNKdE CSCz2oNbhUKG5aYdZL1BB2dhjfLIgBtuwypLRSog1hCvNpwoMpjaMbc2N0uz3MkE Tk6x2QRZvSk= =WZns -----END PGP SIGNATURE-----