Vulnerability · Published Mar 6, 2023 · Assigned by redhat
CVE-2022-45141
Critical 9.8
In plain English
A critical-severity security flaw in Samba. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Since the Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability was disclosed by Microsoft on Nov 8 2022 and per RFC8429 it is assumed that rc4-hmac is weak, Vulnerable Samba Active Directory DCs will issue rc4-hmac encrypted tickets despite the target server supporting better encryption (eg aes256-cts-hmac-sha1-96).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | samba | 2:4.16.0+dfsg-2 | DEBIAN-CVE-2022-45141 |
| Debian:13 | samba | 2:4.16.0+dfsg-2 | DEBIAN-CVE-2022-45141 |
| Debian:14 | samba | 2:4.16.0+dfsg-2 | DEBIAN-CVE-2022-45141 |
| Ubuntu:22.04:LTS | samba | 2:4.15.13+dfsg-0ubuntu1 | USN-5822-1 |
| Ubuntu:22.04:LTS | samba | 2:4.15.13+dfsg-0ubuntu1 | UBUNTU-CVE-2022-45141 |
Affected products (as reported)
Weakness: CWE-328, CWE-326 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H