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Amazon Linux AMI 2: CVE-2021-44142: Security patch for samba (ALAS-2022-1746)

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Amazon Linux AMI 2: CVE-2021-44142: Security patch for samba (ALAS-2022-1746)

Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
02/21/2022
Created
07/16/2022
Added
07/04/2022
Modified
07/14/2022

Description

The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.

Solution(s)

  • amazon-linux-ami-2-upgrade-ctdb
  • amazon-linux-ami-2-upgrade-ctdb-tests
  • amazon-linux-ami-2-upgrade-libsmbclient
  • amazon-linux-ami-2-upgrade-libsmbclient-devel
  • amazon-linux-ami-2-upgrade-libwbclient
  • amazon-linux-ami-2-upgrade-libwbclient-devel
  • amazon-linux-ami-2-upgrade-samba
  • amazon-linux-ami-2-upgrade-samba-client
  • amazon-linux-ami-2-upgrade-samba-client-libs
  • amazon-linux-ami-2-upgrade-samba-common
  • amazon-linux-ami-2-upgrade-samba-common-libs
  • amazon-linux-ami-2-upgrade-samba-common-tools
  • amazon-linux-ami-2-upgrade-samba-dc
  • amazon-linux-ami-2-upgrade-samba-dc-libs
  • amazon-linux-ami-2-upgrade-samba-debuginfo
  • amazon-linux-ami-2-upgrade-samba-devel
  • amazon-linux-ami-2-upgrade-samba-krb5-printing
  • amazon-linux-ami-2-upgrade-samba-libs
  • amazon-linux-ami-2-upgrade-samba-pidl
  • amazon-linux-ami-2-upgrade-samba-python
  • amazon-linux-ami-2-upgrade-samba-python-test
  • amazon-linux-ami-2-upgrade-samba-test
  • amazon-linux-ami-2-upgrade-samba-test-libs
  • amazon-linux-ami-2-upgrade-samba-vfs-glusterfs
  • amazon-linux-ami-2-upgrade-samba-winbind
  • amazon-linux-ami-2-upgrade-samba-winbind-clients
  • amazon-linux-ami-2-upgrade-samba-winbind-krb5-locator
  • amazon-linux-ami-2-upgrade-samba-winbind-modules

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