CVE Vulnerabilities

CVE-2020-17525

NULL Pointer Dereference

Published: Mar 17, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
7.5 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM

Subversions 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

Weakness

The product dereferences a pointer that it expects to be valid but is NULL.

Affected Software

Name Vendor Start Version End Version
Subversion Apache 1.9.0 (including) 1.10.7 (excluding)
Subversion Apache 1.11.0 (including) 1.14.1 (excluding)
Red Hat Enterprise Linux 8 RedHat subversion:1.10-8030020210210135829.4035eae3 *
Red Hat Enterprise Linux 8.1 Extended Update Support RedHat subversion:1.10-8010020210211092435.fa3af259 *
Red Hat Enterprise Linux 8.2 Extended Update Support RedHat subversion:1.10-8020020210211092052.f2093e77 *
Subversion Ubuntu bionic *
Subversion Ubuntu esm-apps/bionic *
Subversion Ubuntu esm-apps/focal *
Subversion Ubuntu esm-infra/xenial *
Subversion Ubuntu focal *
Subversion Ubuntu groovy *
Subversion Ubuntu trusty *
Subversion Ubuntu upstream *
Subversion Ubuntu xenial *

Potential Mitigations

References