Out-of-bounds Read Affecting samba-client-libs package, versions <0:4.14.5-9.el8_5


Severity

Recommended
critical

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
18.05% (97th percentile)

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  • Snyk IDSNYK-ROCKY8-SAMBACLIENTLIBS-3278099
  • published3 Feb 2023
  • disclosed21 Feb 2022

Introduced: 21 Feb 2022

CVE-2021-44142  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 samba-client-libs to version 0:4.14.5-9.el8_5 or higher.
This issue was patched in RLSA-2022:0332.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba-client-libs package and not the samba-client-libs package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1