Vulnerability · Published Aug 25, 2022 · Assigned by redhat
CVE-2022-2031
High 8.8
In plain English
A high-severity authentication bypass in samba. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.3%top 30.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other services.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | samba | 4.15.9-r0 | ALPINE-CVE-2022-2031 |
| Alpine:v3.21 | samba | 4.15.9-r0 | ALPINE-CVE-2022-2031 |
| Alpine:v3.22 | samba | 4.15.9-r0 | ALPINE-CVE-2022-2031 |
| Alpine:v3.23 | samba | 4.15.9-r0 | ALPINE-CVE-2022-2031 |
| Alpine:v3.24 | samba | 4.15.9-r0 | ALPINE-CVE-2022-2031 |
| Debian:12 | samba | 2:4.16.4+dfsg-1 | DEBIAN-CVE-2022-2031 |
| Debian:13 | samba | 2:4.16.4+dfsg-1 | DEBIAN-CVE-2022-2031 |
| Debian:14 | samba | 2:4.16.4+dfsg-1 | DEBIAN-CVE-2022-2031 |
| Ubuntu:22.04:LTS | samba | 2:4.15.9+dfsg-0ubuntu0.2 | UBUNTU-CVE-2022-2031 |
| Ubuntu:22.04:LTS | samba | 2:4.15.9+dfsg-0ubuntu0.2 | USN-5542-1 |
Affected products (as reported)
Weakness: CWE-288