CVE-2020-17525

2021-02-1000:00:00

ubuntu.com

cve-2020-17525

subversion

mod_authz_svn

in-repository authz rules

server crash

1.14.1

1.10.7

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.007

Percentile

80.3%

JSON

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

Bugs

<https://bugs.launchpad.net/ubuntu/+source/subversion/+bug/1915698>

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchsubversion< 1.9.7-4ubuntu1.1UNKNOWN
ubuntu20.04noarchsubversion< 1.13.0-3ubuntu0.2UNKNOWN
ubuntu16.04noarchsubversion< 1.9.3-2ubuntu1.3+esm1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	subversion	< 1.9.7-4ubuntu1.1	UNKNOWN
ubuntu	20.04	noarch	subversion	< 1.13.0-3ubuntu0.2	UNKNOWN
ubuntu	16.04	noarch	subversion	< 1.9.3-2ubuntu1.3+esm1	UNKNOWN