[CLSA-2026:1779365436] samba: Fix of CVE-2021-20251
Type:
security
Severity:
Moderate
Release date:
2026-05-21 12:10:40 UTC
Description:
- CVE-2021-20251: fix race condition in the password lockout code that allowed determined attackers to exceed the configured bad-password count by issuing concurrent authentication / SAMR password-change requests for the same account; the bad-password-count read and the follow-up increment now run under a per-user named mutex in both check_sam_security() and pass_oem_change()
Updated packages:
  • ctdb-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:73daab7809565c7f7d4005c63ed92aa3c6c14f7f674e15336fe235cf8e67ebed
  • ctdb-tests-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:035526bb76047f2797c35068defe3785e313b37385983c0d8d52fe2199f9d296
  • libsmbclient-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:900f784071c09645105e423c74630adf35826071de09ac8b7248ed1a4b9cd83f
  • libsmbclient-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:d54ab0d9106c236c95f506b29516a9b7dd4eb1da473b931e82bbdd5e7ea61aab
  • libsmbclient-devel-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:e37ccf7f70027176af9691943c60cd93b228f8f414acf7fd517fe06193f280fd
  • libsmbclient-devel-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:ddf3485a606c0db3c3cf5abf9d95aa429c3f352fcaf170b9a10896fa96ffc7a5
  • libwbclient-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:78e9ef6ed25b1b608e0b68e1ba375b2dfae9312c67f2efa7158b5c87a1863b93
  • libwbclient-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:d4a74208ff7902546d11abad683a991d63a5f8f615dd013186deabc83ae4f748
  • libwbclient-devel-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:fae53d60c6eb84d52af6c325af637ea7f57c70e7e7102bec417a56b4c26da751
  • libwbclient-devel-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:3db18b75decd7b979b073b077bbbb24f85449c172cf8b347159eeead8a18ab8e
  • samba-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:bd6218f0b4c3ea737799921fcd8135239a54c8144e48fc0eb0d28ef3f70d962f
  • samba-client-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:30677fb15d6fac1ab5dac7e9773fbf6fe76e64472f69551172a79593d85aafae
  • samba-client-libs-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:d7a6604bd27dfa0d3a8db279864447de68a333407cc306ff02d75e017755143d
  • samba-client-libs-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:7ed672a0a9beef96d860f86ab1a412c57471aed1f69410fbdd1eecea3ef99539
  • samba-common-4.10.16-25.el7_9.tuxcare.els8.noarch.rpm
    sha:299bce7c9b458c139d7b8798387547bdac712b81c626c3f14296c0211e73de7e
  • samba-common-libs-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:875c4425567956b0855305a6c654c57d1f9771d95227c8fdc272fd6c69b176c8
  • samba-common-libs-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:d71c3936cba5819095b17a2651870c33f6e1437ddd446a91a78a09adfdc29ec7
  • samba-common-tools-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:f6a9f7f88e99fe1520ca3d57117fdcd5cae76643de687e73f0432271e618f785
  • samba-dc-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:2de1fc9c24589e2d612818b02037f95ffd081d04fde97008dadbbe26ab740ad8
  • samba-dc-libs-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:692f0499fd645ba11b60eed532fafc7dd2dc4fa42e618d65789ad0898c88d7f7
  • samba-devel-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:eac979ad385ac1056de49d165b807de5a378aa34c830cbb3de5fb85e22841431
  • samba-devel-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:2be0aadaa912a4950d256f196ce92d1b97ca9c063658dd3a8dd549413bf6f515
  • samba-krb5-printing-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:1e4b4d644bf14607d7a42a439c33079997d0cca3869be1e87a70be8fe8d0326f
  • samba-libs-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:8386014c61cf72565bc8ce13021b14222d2a40d22534fc41f72d7fc9a0403476
  • samba-libs-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:5ebf6f51cb29606047cac8019f01c9d82e33f5af7d57a9d5d34d4585b039a4b6
  • samba-pidl-4.10.16-25.el7_9.tuxcare.els8.noarch.rpm
    sha:41c8ae43bd277c8632279c58ab9386ccbed9abfed35b6ddeb06afee7338cf23f
  • samba-python-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:8e74998e361ae84b618cf8f2c3cac4cc78872ce32295da1c9dbe66a06771c168
  • samba-python-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:2fb48f1322cbf5a8c56e4faaa38250b440aaf87141082c2ac8ac42f42d81e398
  • samba-python-test-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:216dfeaed4f063fa530c2e8161351ef90426d8d296e4c058047c4ddaeb33b90a
  • samba-test-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:436775bf99c0a88e8cf0fd08f60a237914c84787bec58f4d2abb331baacaec53
  • samba-test-libs-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:f742a755ff669cd5087601fd9e6d5fef0f0e3454ef7b21a56bbc9ddf83f43395
  • samba-test-libs-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:4bbf852532c6577bb9706ea23c2befa11d58c206545597890acecdac49936742
  • samba-vfs-glusterfs-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:012e066f9173440d205af8902dc8733b28ff2a4dffbfd01dbecb5c537c321993
  • samba-winbind-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:3bda83c7a949f5ed1f6fbc0dc5ed83435f4f7ddff270d5396ef7a2cdb3a5b895
  • samba-winbind-clients-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:0c499ee63e6c7d2ecf4c095d06a845e82696b471e33093711162e38d0d3e57c0
  • samba-winbind-krb5-locator-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:a19f310f69d640724d932bebcd302d647c8bfd39d7d23692063aefd36ea1c2d5
  • samba-winbind-modules-4.10.16-25.el7_9.tuxcare.els8.i686.rpm
    sha:cf81ee498ae2b3e852ed979c2740d1896f2dfc891d0879ca1e14d19bfc0cbd60
  • samba-winbind-modules-4.10.16-25.el7_9.tuxcare.els8.x86_64.rpm
    sha:6fa39e2eec61493e226ac2e527689488010dc657c404a9891b9ee2fd2a770491
Notes:
This page is generated automatically and has not been checked for errors. For clarification or corrections please contact the CloudLinux Packaging Team.