NVD

CVE-2021-44142 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Current 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.

View Analysis Description

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 8.8 HIGH

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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 9.0 HIGH

Vector: (AV:N/AC:L/Au:S/C:C/I:C/A:C)

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	NIST Red Hat, Inc.
CWE-125	Out-of-bounds Read	NIST Red Hat, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

CVE Modified by Red Hat, Inc. 11/06/2023 10:39:33 PM

Action	Type	Old Value	New Value
Added	CWE		Red Hat, Inc. CWE-125
Added	CWE		Red Hat, Inc. CWE-787
Removed	CWE	CERT/CC CWE-125
Removed	CWE	CERT/CC CWE-787
Added	Reference		Red Hat, Inc. https://bugzilla.samba.org/show_bug.cgi?id=14914 [No types assigned]
Added	Reference		Red Hat, Inc. https://kb.cert.org/vuls/id/119678 [No types assigned]
Added	Reference		Red Hat, Inc. https://security.gentoo.org/glsa/202309-06 [No types assigned]
Added	Reference		Red Hat, Inc. https://www.samba.org/samba/security/CVE-2021-44142.html [No types assigned]
Added	Reference		Red Hat, Inc. https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin [No types assigned]
Removed	Reference	CERT/CC https://bugzilla.samba.org/show_bug.cgi?id=14914
Removed	Reference	CERT/CC https://kb.cert.org/vuls/id/119678
Removed	Reference	CERT/CC https://security.gentoo.org/glsa/202309-06
Removed	Reference	CERT/CC https://www.samba.org/samba/security/CVE-2021-44142.html
Removed	Reference	CERT/CC https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin

Initial Analysis by NIST 2/23/2022 10:47:14 AM

Action	Type	Old Value	New Value
Added	CVSS V3.1		NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CVSS V2		NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C)
Added	CWE		NIST CWE-125
Added	CWE		NIST CWE-787
Added	CPE Configuration		Record truncated, showing 500 of 2148 characters. View Entire Change Record OR cpe:2.3:a:redhat:codeready_linux_builder:-::::::: cpe:2.3:a:redhat:gluster_storage:3.5::::::: cpe:2.3:a:redhat:virtualization_host:4.0::::::: cpe:2.3:o:redhat:enterprise_linux:7.0::::::: cpe:2.3:o:redhat:enterprise_linux:8.0::::::: cpe:2.3:o:redhat:enterprise_linux_desktop:7.0::::::: cpe:2.3:o:redhat:enterprise_linux_eus:8.2::::::: cpe:2.3:o:redhat:enterprise_linux_eus:8.4::::::: *cpe:
Added	CPE Configuration		OR cpe:2.3:a:samba:samba::::::::* versions up to (excluding) 4.13.17 cpe:2.3:a:samba:samba::::::::* versions from (including) 4.14.0 up to (excluding) 4.14.12 cpe:2.3:a:samba:samba::::::::* versions from (including) 4.15.0 up to (excluding) 4.15.5
Added	CPE Configuration		OR cpe:2.3:a:synology:diskstation_manager::::::::* versions from (including) 6.2 up to (excluding) 6.2.4-25556.4
Added	CPE Configuration		OR cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::* cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::* cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::* cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::* cpe:2.3:o:canonical:ubuntu_linux:21.10:::::::
Added	CPE Configuration		OR cpe:2.3:o:debian:debian_linux:10.0::::::: cpe:2.3:o:debian:debian_linux:11.0:::::::
Added	CPE Configuration		OR cpe:2.3:o:fedoraproject:fedora:34::::::: cpe:2.3:o:fedoraproject:fedora:35:::::::
Changed	Reference Type	https://bugzilla.samba.org/show_bug.cgi?id=14914 No Types Assigned	https://bugzilla.samba.org/show_bug.cgi?id=14914 Issue Tracking, Patch, Vendor Advisory
Changed	Reference Type	https://kb.cert.org/vuls/id/119678 No Types Assigned	https://kb.cert.org/vuls/id/119678 Patch, Third Party Advisory
Changed	Reference Type	https://www.samba.org/samba/security/CVE-2021-44142.html No Types Assigned	https://www.samba.org/samba/security/CVE-2021-44142.html Mitigation, Vendor Advisory
Changed	Reference Type	https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin No Types Assigned	https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin Exploit, Third Party Advisory, VDB Entry

Quick Info

CVE Dictionary Entry:
CVE-2021-44142
NVD Published Date:
02/21/2022
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2021-44142 Detail

Current Description

Analysis Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/21/2024 1:30:25 AM

CVE Modified by Red Hat, Inc. 5/14/2024 5:36:16 AM

CVE Source Update by Red Hat, Inc. 11/06/2023 10:39:33 PM

CVE Modified by Red Hat, Inc. 11/06/2023 10:39:33 PM

CVE Modified by CERT/CC 9/17/2023 5:15:10 AM

Initial Analysis by NIST 2/23/2022 10:47:14 AM

Quick Info