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CVE-2021-44142

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.

Data is provided by the National Vulnerability Database (NVD)
Samba ≫ Samba Version < 4.13.17
Samba ≫ Samba Version >= 4.14.0 < 4.14.12
Samba ≫ Samba Version >= 4.15.0 < 4.15.5
Debian ≫ Debian Linux Version10.0
Debian ≫ Debian Linux Version11.0
Canonical ≫ Ubuntu Linux Version14.04 SwEditionesm
Canonical ≫ Ubuntu Linux Version16.04 SwEditionesm
Canonical ≫ Ubuntu Linux Version18.04 SwEditionlts
Canonical ≫ Ubuntu Linux Version20.04 SwEditionlts
Canonical ≫ Ubuntu Linux Version21.10
Synology ≫ Diskstation Manager Version >= 6.2 < 6.2.4-25556.4
Fedoraproject ≫ Fedora Version34
Fedoraproject ≫ Fedora Version35
Redhat ≫ Gluster Storage Version3.5
Redhat ≫ Virtualization Host Version4.0
Redhat ≫ Enterprise Linux Version7.0
Redhat ≫ Enterprise Linux Version8.0
Redhat ≫ Enterprise Linux Eus Version8.2
Redhat ≫ Enterprise Linux Eus Version8.4
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 28.45% 0.964
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 9 8 10
AV:N/AC:L/Au:S/C:C/I:C/A:C
134c704f-9b21-4f2e-91b3-4a467353bcc0 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.