Podatność CVE-2021-44142


Publikacja: 2022-02-21

Opis:
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.

Typ:

CWE-125

(Out-of-bounds Read)

CVSS2 => (AV:N/AC:L/Au:S/C:C/I:C/A:C)

Ogólna skala CVSS
Znaczenie
Łatwość wykorzystania
9/10
10/10
8/10
Wymagany dostęp
Złożoność ataku
Autoryzacja
Zdalny
Niska
Jednorazowa
Wpływ na poufność
Wpływ na integralność
Wpływ na dostępność
Pełny
Pełny
Pełny
Affected software
Synology -> Diskstation manager 
Samba -> Samba 
Redhat -> Enterprise linux for power little endian eus 
Redhat -> Enterprise linux for scientific computing 
Redhat -> Enterprise linux resilient storage 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server aus 
Redhat -> Enterprise linux server tus 
Redhat -> Codeready linux builder 
Redhat -> Enterprise linux server update services for sap solutions 
Redhat -> Gluster storage 
Redhat -> Enterprise linux workstation 
Redhat -> Virtualization host 
Redhat -> Enterprise linux 
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux eus 
Redhat -> Enterprise linux for ibm z systems 
Redhat -> Enterprise linux for ibm z systems eus 
Redhat -> Enterprise linux for power big endian 
Redhat -> Enterprise linux for power little endian 
Fedoraproject -> Fedora 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

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

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