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CVE-2020-17525

Publication date 10 February 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
subversion 22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.10 groovy Ignored
20.04 LTS focal
Fixed 1.13.0-3ubuntu0.2
18.04 LTS bionic
Fixed 1.9.7-4ubuntu1.1
16.04 LTS xenial
14.04 LTS trusty Not in release

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Severity score breakdown

Parameter Value
Base score 7.5 · High
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

References

Related Ubuntu Security Notices (USN)

    • USN-5322-1
    • Subversion vulnerability
    • 10 March 2022
    • USN-5445-1
    • Subversion vulnerabilities
    • 26 May 2022

Other references