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CVE-2021-44142

UNKNOWN
Published 2022-02-21T14:30:12.659Z
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Expert Analysis

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CVSS Score

V3.1
8.8
/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.253
probability
of exploitation in the wild

There is a 25.3% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.959
Higher than 95.9% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Samba

Samba

Affected Versions:

unspecified unspecified unspecified

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-mpfw-9wp5-hfff

Advisory Details

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 Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-44142
WEB https://bugzilla.samba.org/show_bug.cgi?id=14914
WEB https://kb.cert.org/vuls/id/119678
WEB https://security.gentoo.org/glsa/202309-06
WEB https://www.kb.cert.org/vuls/id/119678
WEB https://www.samba.org/samba/security/CVE-2021-44142.html
WEB https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin

Advisory provided by GitHub Security Advisory Database. Published: February 22, 2022, Modified: April 23, 2025

References

https://www.samba.org/samba/security/CVE-2021-44142.html
https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin
https://kb.cert.org/vuls/id/119678
https://bugzilla.samba.org/show_bug.cgi?id=14914
https://security.gentoo.org/glsa/202309-06
Published: 2022-02-21T14:30:12.659Z
Last Modified: 2025-04-23T19:02:19.767Z
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