8.8High

CVE-2021-44142

Samba Samba Published: 2022-02-21 17:30 (4 years ago)

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.

Weakness (CWE): CWE-125 CWE-787

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
Samba	Samba	unspecified – < 4.13.17, unspecified – < 4.14.12, unspecified – < 4.15.5

References and patches

CVSS score

8.8High

Source: CISA-ADP · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

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

EPSS (chance of exploitation in 30 days)

73.59%

higher than 99% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: no
Technical impact: total

Timeline

ID reserved2021-11-22
Published2022-02-21 17:30
Reached IP-DB2026-10-25 00:03
Last updated2025-04-23 22:02

Assigned by (CNA): redhat

View at source: CVE.org · NVD

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