CVE-2020-17525
Published: 10 February 2021
Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing repository URL. This can lead to disruption for users of the service. This issue was fixed in mod_dav_svn+mod_authz_svn servers 1.14.1 and mod_dav_svn+mod_authz_svn servers 1.10.7
From the Ubuntu Security Team
Thomas Åkesson discovered that Subversion incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
subversion Launchpad, Ubuntu, Debian |
bionic |
Released
(1.9.7-4ubuntu1.1)
|
| focal |
Released
(1.13.0-3ubuntu0.2)
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Not vulnerable
(1.14.1-1)
|
|
| impish |
Not vulnerable
(1.14.1-1)
|
|
| jammy |
Not vulnerable
(1.14.1-1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(1.10.7, 1.14.1)
|
|
| xenial |
Released
(1.9.3-2ubuntu1.3+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| Binaries built from this source package are in Universe and so are supported by the community. | ||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |