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Alma Linux: CVE-2021-44142: Critical: samba security and bug fix update (ALSA-2022-0332)

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Alma Linux: CVE-2021-44142: Critical: samba security and bug fix update (ALSA-2022-0332)

Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
02/21/2022
Created
05/05/2022
Added
05/04/2022
Modified
11/08/2023

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)

  • alma-upgrade-libsmbclient-devel
  • alma-upgrade-libwbclient-devel
  • alma-upgrade-samba-devel
  • alma-upgrade-samba-vfs-iouring

References

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