CVE-2021-44142
high · 8.8The 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.
8.8
CVSS
73.4%
EPSS (exploit prob.)
99th
EPSS percentile
2022-02-21
Published
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-125CWE-787
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| samba | samba | < 4.13.17 |
| samba | samba | >= 4.14.0, < 4.14.12 |
| samba | samba | >= 4.15.0, < 4.15.5 |
| debian | debian_linux | 10.0 |
| debian | debian_linux | 11.0 |
| canonical | ubuntu_linux | 14.04 |
| canonical | ubuntu_linux | 16.04 |
| canonical | ubuntu_linux | 18.04 |
| canonical | ubuntu_linux | 20.04 |
| canonical | ubuntu_linux | 21.10 |
| synology | diskstation_manager | >= 6.2, < 6.2.4-25556.4 |
| fedoraproject | fedora | 34 |
| fedoraproject | fedora | 35 |
| redhat | codeready_linux_builder | all versions |
| redhat | gluster_storage | 3.5 |
| redhat | virtualization_host | 4.0 |
| redhat | enterprise_linux | 7.0 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux_desktop | 7.0 |
| redhat | enterprise_linux_eus | 8.2 |
| redhat | enterprise_linux_eus | 8.4 |
| redhat | enterprise_linux_for_ibm_z_systems | 7.0 |
| redhat | enterprise_linux_for_ibm_z_systems | 8.0 |
| redhat | enterprise_linux_for_ibm_z_systems_eus | 8.2 |
| redhat | enterprise_linux_for_ibm_z_systems_eus | 8.4 |
| redhat | enterprise_linux_for_power_big_endian | 7.0 |
| redhat | enterprise_linux_for_power_little_endian | 7.0 |
| redhat | enterprise_linux_for_power_little_endian | 8.0 |
| redhat | enterprise_linux_for_power_little_endian_eus | 8.2 |
| redhat | enterprise_linux_for_power_little_endian_eus | 8.4 |
| redhat | enterprise_linux_for_scientific_computing | 7.0 |
| redhat | enterprise_linux_resilient_storage | 7.0 |
| redhat | enterprise_linux_server | 7.0 |
| redhat | enterprise_linux_server | 8.1 |
| redhat | enterprise_linux_server_aus | 8.2 |
| redhat | enterprise_linux_server_aus | 8.4 |
| redhat | enterprise_linux_server_tus | 8.2 |
| redhat | enterprise_linux_server_tus | 8.4 |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | 8.1 |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | 8.2 |
Check a specific version with /api/v1/cve/match.
References
- https://bugzilla.samba.org/show_bug.cgi?id=14914
- https://kb.cert.org/vuls/id/119678
- https://security.gentoo.org/glsa/202309-06
- 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://bugzilla.samba.org/show_bug.cgi?id=14914
- https://kb.cert.org/vuls/id/119678
- https://security.gentoo.org/glsa/202309-06
- https://www.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
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2021-44142