CVE-2021-44142
- Source
- https://cve.org/CVERecord?id=CVE-2021-44142
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44142.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-44142
- Downstream
- Related
- Published
- 2022-02-21T15:15:07.380Z
- Modified
- 2026-03-15T22:42:38.146298Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The Samba vfsfruit 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 vfsfruit 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.
- References
-
- https://kb.cert.org/vuls/id/119678
- https://www.samba.org/samba/security/CVE-2021-44142.html
- https://www.kb.cert.org/vuls/id/119678
- https://security.gentoo.org/glsa/202309-06
- 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
Affected packages
Git / github.com/samba-team/samba
Affected ranges
- Type
- GIT
- Repo
- https://github.com/samba-team/samba
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedIntroducedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "versions": [ { "introduced": "0" }, { "fixed": "4.13.17" }, { "introduced": "4.14.0" }, { "fixed": "4.14.12" }, { "introduced": "4.15.0" }, { "fixed": "4.15.5" }, { "introduced": "0" }, { "last_affected": "3.5" }, { "introduced": "0" }, { "last_affected": "4.0" } ] }
Database specific
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "10.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "11.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "14.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "16.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "20.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "21.10"
}
]
},
{
"events": [
{
"introduced": "6.2"
},
{
"fixed": "6.2.4-25556.4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "34"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "35"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
}
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44142.json"