Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Samba | Samba | unspecified – < 4.13.17, unspecified – < 4.14.12, unspecified – < 4.15.5 | 4.13.17 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | samba | 2:4.16.0+dfsg-2 | — |
| Debian 13 | samba | 2:4.16.0+dfsg-2 | — |
| Debian 12 | samba | 2:4.16.0+dfsg-2 | — |
| Debian 11 | samba | 2:4.13.13+dfsg-1~deb11u3 | DSA-5071-1 |
| Debian 10 | samba | 2:4.9.5+dfsg-5+deb10u3 | DSA-5071-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | samba | 2:4.13.17~dfsg-0ubuntu0.21.04.1 | USN-5260-1 |
| Ubuntu 18.04 LTS | samba | 2:4.7.6+dfsg~ubuntu-0ubuntu2.28 | USN-5260-2 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | samba | 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm1 | USN-5260-3 |
| Ubuntu Pro 14.04 LTS | samba | 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm12 | USN-5260-3 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | ctdb +24 | 4.14.5-9.el8_5 | RHSA-2022:0332 |
| RHEL 7 | ctdb +26 | 4.10.16-18.el7_9 | RHSA-2022:0328 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.4 EUS | ctdb +24 | 4.13.3-9.el8_4 | RHSA-2022:0331 |
| RHEL 8.2 EUS | ctdb +22 | 4.11.2-19.el8_2 | RHSA-2022:0330 |
| RHEL 8.1 E4S | ctdb +20 | 4.10.4-103.el8_1 | RHSA-2022:0329 |
| RHEL 7.7 TUS | samba +24 | 4.9.1-12.el7_7 | RHSA-2022:0664 |
| RHEL 7.7 E4S | samba +24 | 4.9.1-12.el7_7 | RHSA-2022:0664 |
| RHEL 7.7 AUS | samba +24 | 4.9.1-12.el7_7 | RHSA-2022:0664 |
| RHEL 7.6 TUS | samba +24 | 4.8.3-7.el7_6 | RHSA-2022:0663 |
| RHEL 7.6 E4S | samba +23 | 4.8.3-7.el7_6 | RHSA-2022:0663 |
| RHEL 7.6 AUS | samba +24 | 4.8.3-7.el7_6 | RHSA-2022:0663 |
| Red Hat Gluster Storage 3 | ctdb +20 | 4.11.6-116.el7rhgs | RHSA-2022:0458, RHSA-2022:0457 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | samba-devel +3 | 4.14.5-9.el8_5 | ALSA-2022:0332 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | samba | 4.14.5-9.el8_5 | RLSA-2022:0332 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | apparmor | 2.13.6-150300.3.11.2 | SUSE-SU-2022:0283-1 |
| SLES 15 SP3 | krb5 | 1.19.2-150300.8.3.2 | SUSE-SU-2022:0283-1 |
| SLES 15 SP3 | ldb | 2.4.1-150300.3.10.1 | SUSE-SU-2022:0283-1 |
| SLES 15 SP3 | libapparmor | 2.13.6-150300.3.11.1 | SUSE-SU-2022:0283-1 |
| SLES 15 SP3 | samba | 4.15.4+git.324.8332acf1a63-150300.3.25.3 | SUSE-SU-2022:0283-1 |
| SLES 15 SP3 | sssd | 1.16.1-150300.23.17.3 | SUSE-SU-2022:0283-1 |
| SLES 15 SP3 | talloc | 2.3.3-150300.3.3.2 | SUSE-SU-2022:0283-1 |
| SLES 15 SP3 | talloc-man | 2.3.3-150300.3.3.1 | SUSE-SU-2022:0283-1 |
| SLES 15 SP3 | tdb | 1.4.4-150300.3.3.2 | SUSE-SU-2022:0283-1 |
| SLES 15 SP3 | tevent | 0.11.0-150300.3.3.2 | SUSE-SU-2022:0283-1 |
| SLES 15 SP3 | tevent-man | 0.11.0-150300.3.3.1 | SUSE-SU-2022:0283-1 |
| SLES 15 SP2 | samba | 4.11.14+git.319.91d693db37c-4.35.1 | SUSE-SU-2022:0287-1 |
| SLES 15 SP1 | samba | 4.9.5+git.483.212a7ebca6b-3.64.1 | SUSE-SU-2022:0284-1 |
| SLES 15 | samba | 4.7.11+git.365.5e9f8cc5fa0-4.63.1 | SUSE-SU-2022:0251-1 |
| SLES 12 SP5 | apparmor | 2.8.2-56.6.3 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | ca-certificates | 1_201403302107-15.3.3 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | gnutls | 3.4.17-8.4.1 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | libnettle | 3.1-21.3.2 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | p11-kit | 0.23.2-8.3.2 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | samba | 4.15.4+git.324.8332acf1a63-3.54.1 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | sssd | 1.16.1-7.28.9 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | yast2-samba-client | 3.1.23-3.3.1 | SUSE-SU-2022:0323-1 |
Show 25 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | samba | 4.6.16+git.320.a2d80a7efef-3.70.1 | SUSE-SU-2022:0271-1 |
| SLES 12 SP3 | samba | 4.6.16+git.320.a2d80a7efef-3.70.1 | SUSE-SU-2022:0271-1 |
| SLES 12 SP2 | samba | 4.4.2-38.48.1 | SUSE-SU-2022:0252-1 |
| SLES 2 | samba | 4.15.4+git.324.8332acf1a63-150300.3.25.3 | SUSE-SU-2022:0283-1 |
| SLES for SAP 15 SP2 | samba | 4.11.14+git.319.91d693db37c-4.35.1 | SUSE-SU-2022:0287-1 |
| SLES for SAP 15 SP1 | samba | 4.9.5+git.483.212a7ebca6b-3.64.1 | SUSE-SU-2022:0284-1 |
| SLES for SAP 15 | samba | 4.7.11+git.365.5e9f8cc5fa0-4.63.1 | SUSE-SU-2022:0251-1 |
| SLES for SAP 12 SP5 | apparmor | 2.8.2-56.6.3 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | ca-certificates | 1_201403302107-15.3.3 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | gnutls | 3.4.17-8.4.1 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | libnettle | 3.1-21.3.2 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | p11-kit | 0.23.2-8.3.2 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | samba | 4.15.4+git.324.8332acf1a63-3.54.1 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | sssd | 1.16.1-7.28.9 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | yast2-samba-client | 3.1.23-3.3.1 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP4 | samba | 4.6.16+git.320.a2d80a7efef-3.70.1 | SUSE-SU-2022:0271-1 |
| SLES for SAP 12 SP3 | samba | 4.6.16+git.320.a2d80a7efef-3.70.1 | SUSE-SU-2022:0271-1 |
| SLE Real Time 15 SP2 | samba | 4.11.14+git.319.91d693db37c-4.35.1 | SUSE-SU-2022:0287-1 |
| SLE Micro 5.1 | apparmor | 2.13.6-150300.3.11.2 | SUSE-SU-2022:0283-1 |
| SLE Micro 5.1 | krb5 | 1.19.2-150300.8.3.2 | SUSE-SU-2022:0283-1 |
| SLE Micro 5.1 | ldb | 2.4.1-150300.3.10.1 | SUSE-SU-2022:0283-1 |
| SLE Micro 5.1 | libapparmor | 2.13.6-150300.3.11.1 | SUSE-SU-2022:0283-1 |
| SLE Micro 5.1 | sssd | 1.16.1-150300.23.17.3 | SUSE-SU-2022:0283-1 |
| SLE Micro 5.1 | talloc | 2.3.3-150300.3.3.2 | SUSE-SU-2022:0283-1 |
| SLE Micro 5.1 | tdb | 1.4.4-150300.3.3.2 | SUSE-SU-2022:0283-1 |
| SLE Micro 5.1 | tevent | 0.11.0-150300.3.3.2 | SUSE-SU-2022:0283-1 |
| SLE HPC 15 SP2 | samba | 4.11.14+git.319.91d693db37c-4.35.1 | SUSE-SU-2022:0287-1 |
| SLE HPC 15 SP1 | samba | 4.9.5+git.483.212a7ebca6b-3.64.1 | SUSE-SU-2022:0284-1 |
| SLE HPC 15 | samba | 4.7.11+git.365.5e9f8cc5fa0-4.63.1 | SUSE-SU-2022:0251-1 |
| SUSE OpenStack Cloud Crowbar 9 | samba | 4.6.16+git.320.a2d80a7efef-3.70.1 | SUSE-SU-2022:0271-1 |
| SUSE OpenStack Cloud Crowbar 8 | samba | 4.6.16+git.320.a2d80a7efef-3.70.1 | SUSE-SU-2022:0271-1 |
| SUSE OpenStack Cloud 9 | samba | 4.6.16+git.320.a2d80a7efef-3.70.1 | SUSE-SU-2022:0271-1 |
| SUSE OpenStack Cloud 8 | samba | 4.6.16+git.320.a2d80a7efef-3.70.1 | SUSE-SU-2022:0271-1 |
| SUSE Manager Server 4.1 | samba | 4.11.14+git.319.91d693db37c-4.35.1 | SUSE-SU-2022:0287-1 |
| SUSE Manager Retail Branch Server 4.1 | samba | 4.11.14+git.319.91d693db37c-4.35.1 | SUSE-SU-2022:0287-1 |
| SUSE Manager Proxy 4.1 | samba | 4.11.14+git.319.91d693db37c-4.35.1 | SUSE-SU-2022:0287-1 |
| SUSE HPE Helion OpenStack 8 | samba | 4.6.16+git.320.a2d80a7efef-3.70.1 | SUSE-SU-2022:0271-1 |
| SUSE Enterprise Storage 7 | ldb | 2.2.2-4.6.1 | SUSE-SU-2022:0361-1 |
| SUSE Enterprise Storage 7 | samba | 4.11.14+git.319.91d693db37c-4.35.1 | SUSE-SU-2022:0361-1, SUSE-SU-2022:0287-1 |
| SUSE Enterprise Storage 6 | samba | 4.9.5+git.483.212a7ebca6b-3.64.1 | SUSE-SU-2022:0284-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | samba | 4.15.5+git.328.f1f29505d84-1.1 | openSUSE-SU-2024:11807-1 |
| openSUSE Leap 15.3 | apparmor | 2.13.6-150300.3.11.2 | openSUSE-SU-2022:0283-1 |
| openSUSE Leap 15.3 | krb5 +1 | 1.19.2-150300.8.3.2 | openSUSE-SU-2022:0283-1 |
| openSUSE Leap 15.3 | ldb | 2.4.1-150300.3.10.1 | openSUSE-SU-2022:0283-1 |
| openSUSE Leap 15.3 | libapparmor | 2.13.6-150300.3.11.1 | openSUSE-SU-2022:0283-1 |
| openSUSE Leap 15.3 | samba | 4.15.4+git.324.8332acf1a63-150300.3.25.3 | openSUSE-SU-2022:0283-1 |
| openSUSE Leap 15.3 | sssd | 1.16.1-150300.23.17.3 | openSUSE-SU-2022:0283-1 |
| openSUSE Leap 15.3 | talloc | 2.3.3-150300.3.3.2 | openSUSE-SU-2022:0283-1 |
| openSUSE Leap 15.3 | talloc-man | 2.3.3-150300.3.3.1 | openSUSE-SU-2022:0283-1 |
| openSUSE Leap 15.3 | tdb | 1.4.4-150300.3.3.2 | openSUSE-SU-2022:0283-1 |
| openSUSE Leap 15.3 | tevent | 0.11.0-150300.3.3.2 | openSUSE-SU-2022:0283-1 |
| openSUSE Leap 15.3 | tevent-man | 0.11.0-150300.3.3.1 | openSUSE-SU-2022:0283-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.16 | samba | 4.15.12-r0 | — |
| Alpine v3.15 | samba | 4.15.12-r0 | — |
| Alpine v3.14 | samba | 4.14.12-r0 | — |
| Alpine v3.13 | samba | 4.13.17-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | ctdb +26 | 4.10.16-18.amzn2.0.1 | ALAS2-2022-1746 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | samba | 4.18.3-1 | — |
| Azure Linux 2 (CBL-Mariner) | samba | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | ctdb +24 | 4.14.5-9.el8_5 | ELSA-2022-0332 |
| Oracle Linux 7 | ctdb +26 | 4.10.16-18.el7_9 | ELSA-2022-0328 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 5 repositories
-
horizon3ai/CVE-2021-44142 ★ 10 · Mar 29, 2022
-
Nxvh1337/CVE-2021-44142-vulnerable-lab ★ 3 · Oct 27, 2025
CVE-2021-44142 vulnerable lab
-
gudyrmik/CVE-2021-44142 ★ 1 · Apr 22, 2022
-
neyugNat/Samba_Fruit_Vuln ★ 0 · Oct 31, 2026
CVE-2021-44142 — Samba vfs_fruit heap OOB read/write lab demo (educational)
-
hrsman/Samba-CVE-2021-44142 ★ 0 · Mar 29, 2022
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 32
- ALSA-2022:0332 Critical: samba security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2022-0432 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026
- WID-SEC-2022-0302 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Administratorrechten BSI CERT-Bund (WID) · Oct 11, 2026
- RHSA-2022:0663 Red Hat Security Advisory: samba security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2022:0664 Red Hat Security Advisory: samba security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2022:0458 Red Hat Security Advisory: samba security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2022:0457 Red Hat Security Advisory: samba security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2022:0331 Red Hat Security Advisory: samba security and bug fix update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2022:0332 Red Hat Security Advisory: samba security and bug fix update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2022:0330 Red Hat Security Advisory: samba security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2022:0328 Red Hat Security Advisory: samba security and bug fix update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2022:0329 Red Hat Security Advisory: samba security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- USN-5260-3 samba vulnerability Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-5260-1 samba vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-5260-2 samba vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5071-1 samba - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:0332 Critical: samba security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2022:0271-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0283-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0287-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0251-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0252-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0283-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0323-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11807-1 ctdb-4.15.5+git.328.f1f29505d84-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0284-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0361-1 Security update for ldb, samba SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1335 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 6, 2025
- WID-SEC-2022-0466 Samba: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 21, 2023
- ALAS2-2022-1746 Critical: samba security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Mar 7, 2022
- ELSA-2022-0328 Critical: samba security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 1, 2022
- ELSA-2022-0332 Critical: samba security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 1, 2022
References
- 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://kb.cert.org/vuls/id/119678 third-party-advisory
- https://bugzilla.samba.org/show_bug.cgi?id=14914
- GLSA-202309-06 vendor-advisory