9

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.
Daten sind bereitgestellt durch 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 Version 10.0
Debian ≫ Debian Linux Version 11.0
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 20.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 21.10
Synology ≫ Diskstation Manager Version >= 6.2 < 6.2.4-25556.4
Fedoraproject ≫ Fedora Version 34
Fedoraproject ≫ Fedora Version 35
Redhat ≫ Gluster Storage Version 3.5
Redhat ≫ Virtualization Host Version 4.0
Redhat ≫ Enterprise Linux Version 7.0
Redhat ≫ Enterprise Linux Version 8.0
Redhat ≫ Enterprise Linux Eus Version 8.2
Redhat ≫ Enterprise Linux Eus Version 8.4
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 73.86% 0.994
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 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
NIST 9 8 10
AV:N/AC:L/Au:S/C:C/I:C/A:C
CISA-ADP 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.

https://security.gentoo.org/glsa/202309-06
https://bugzilla.samba.org/show_bug.cgi?id=14914
https://kb.cert.org/vuls/id/119678
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.kb.cert.org/vuls/id/119678