ALPINE-CVE-2021-44142

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2021-44142
Published: 21 Feb 2022, 15:15
Last modified:19 Nov 2025, 06:19

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

21 Feb 2022, 15:15
Published
Vulnerability first disclosed
19 Nov 2025, 06:19
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • alpine•samba

    < 4.13.17-r0 | < 4.14.12-r0 | < 4.15.12-r0 | < 4.15.12-r0

References (1)