CVE-2016-2167
subversion - security update
6.8
MEDIUM
CVSS 3.1
EPSS 0.97%
Description
The canonicalize_username function in svnserve/cyrus_auth.c in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4, when Cyrus SASL authentication is used, allows remote attackers to authenticate and bypass intended access restrictions via a realm string that is a prefix of an expected repository realm string.
How to fix CVE-2016-2167
To remediate CVE-2016-2167, upgrade the affected package to a fixed version below.
- —upgrade to 1.9.4-1 or later
- —upgrade to 1.6.17dfsg-4+deb7u11 or later
- —upgrade to 1.8.10-6+deb8u4 or later
Is CVE-2016-2167 being exploited?
Low — EPSS is 1.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.9.4-1
- from 0, < 1.6.17dfsg-4+deb7u11
- from 0, < 1.8.10-6+deb8u4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.8 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |