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CVE-2020-17525

Publication date 10 February 2021

Last updated 24 July 2024


Ubuntu 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 Ã…kesson 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 end of life
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