Out-of-bounds Read in Samba
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 w…
Vulnerability class: Buffer Overflow
EPSS: 0.737 (99.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Samba — versions unspecified
- Synology Diskstation_manager
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
- Debian Debian_linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 34, 35
- Redhat Codeready_linux_builder
- Redhat Enterprise_linux — versions 7.0, 8.0
- Redhat Enterprise_linux_desktop — versions 7.0
- Redhat Enterprise_linux_eus — versions 8.2, 8.4
- Redhat Enterprise_linux_for_ibm_z_systems — versions 7.0, 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com
- secalert@redhat.com
- secalert@redhat.com (third-party-advisory)
- secalert@redhat.com
- secalert@redhat.com (vendor-advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2021-44142?
- CVE-2021-44142 is a high-severity vulnerability in Samba, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2022-02-21.
- How severe is CVE-2021-44142?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-44142 known to be exploited?
- 17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.