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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.
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.
Metrics
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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]
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:*:*:*:*:*:*:*
Added
CVSS V2
NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C)
Added
CVSS V3.1
NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CWE
NIST CWE-125
Added
CWE
NIST CWE-787
Changed
Reference Type
https://bugzilla.samba.org/show_bug.cgi?id=14914 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 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: 11/06/2023
Source: Red Hat, Inc.
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