Out-of-bounds Read Affecting samba package, versions <2:4.13.13+dfsg-1~deb11u3


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
18.05% (97th percentile)

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  • Snyk IDSNYK-DEBIAN11-SAMBA-2388687
  • published1 Feb 2022
  • disclosed21 Feb 2022

Introduced: 1 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 Debian:11 samba to version 2:4.13.13+dfsg-1~deb11u3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Debian. See How to fix? for Debian:11 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