CVEvulnerability

CVE-2021-44142

8.8 HIGH Published 2022-02-21 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-02-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
9.0 HIGH — AV:N/AC:L/Au:S/C:C/I:C/A:C
Weaknesses
CWE-125, CWE-787

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.

Affected configurations

• samba samba (< 4.13.17) • samba samba (>= 4.14.0 < 4.14.12) • samba samba (>= 4.15.0 < 4.15.5) • debian debian linux 10.0 • debian debian linux 11.0 • canonical ubuntu linux 14.04 • canonical ubuntu linux 16.04 • canonical ubuntu linux 18.04 • canonical ubuntu linux 20.04 • canonical ubuntu linux 21.10 • synology diskstation manager (>= 6.2 < 6.2.4-25556.4) • fedoraproject fedora 34 • fedoraproject fedora 35 • redhat codeready linux builder • redhat gluster storage 3.5 • redhat virtualization host 4.0 • redhat enterprise linux 7.0 • redhat enterprise linux 8.0 • redhat enterprise linux desktop 7.0 • redhat enterprise linux eus 8.2 • redhat enterprise linux eus 8.4 • redhat enterprise linux for ibm z systems 7.0 • redhat enterprise linux for ibm z systems 8.0 • redhat enterprise linux for ibm z systems eus 8.2 • redhat enterprise linux for ibm z systems eus 8.4 • redhat enterprise linux for power big endian 7.0 • redhat enterprise linux for power little endian 7.0 • redhat enterprise linux for power little endian 8.0 • redhat enterprise linux for power little endian eus 8.2 • redhat enterprise linux for power little endian eus 8.4 • redhat enterprise linux for scientific computing 7.0 • redhat enterprise linux resilient storage 7.0 • redhat enterprise linux server 7.0 • redhat enterprise linux server 8.1 • redhat enterprise linux server aus 8.2 • redhat enterprise linux server aus 8.4 • redhat enterprise linux server tus 8.2 • redhat enterprise linux server tus 8.4 • redhat enterprise linux server update services for sap solutions 8.1 • redhat enterprise linux server update services for sap solutions 8.2 • redhat enterprise linux server update services for sap solutions 8.4 • redhat enterprise linux workstation 7.0

Related

Weakness · CWE (2)

  • CWE-125 Out-of-bounds Read weakness
  • CWE-787 Out-of-bounds Write weakness

References