CVE-2018-16947
openafs - security update
9.8
CRITICAL
CVSS 3.1
EPSS 1.5%
Description
An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. The backup tape controller (butc) process accepts incoming RPCs but does not require (or allow for) authentication of those RPCs. Handling those RPCs results in operations being performed with administrator credentials, including dumping/restoring volume contents and manipulating the backup database. For example, an unauthenticated attacker can replace any volume's content with arbitrary data.
How to fix CVE-2018-16947
To remediate CVE-2018-16947, upgrade the affected package to a fixed version below.
- —upgrade to 1.8.2-1 or later
- —upgrade to 1.6.9-2+deb8u8 or later
- —upgrade to 1.6.20-2+deb9u2 or later
Is CVE-2018-16947 being exploited?
Low — EPSS is 1.5%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.8.2-1
- from 0, < 1.6.9-2+deb8u8
- from 0, < 1.6.20-2+deb9u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |