Out-of-bounds Write Affecting samba-devel package, versions <0:4.14.5-9.el8_5


Severity

Recommended
0.0
critical
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
18.05% (97th percentile)

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  • Snyk IDSNYK-RHEL8-SAMBADEVEL-4197420
  • published1 Feb 2022
  • disclosed31 Jan 2022

Introduced: 31 Jan 2022

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

How to fix?

Upgrade RHEL:8 samba-devel to version 0:4.14.5-9.el8_5 or higher.
This issue was patched in RHSA-2022:0332.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba-devel package and not the samba-devel package as distributed by RHEL. See How to fix? for RHEL: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