Apache Subversion up to 1.10.6/1.14.0 mod_authz_svn null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Apache Subversion up to 1.10.6/1.14.0 and classified as problematic. The affected element is an unknown function of the component mod_authz_svn. Executing a manipulation can lead to null pointer dereference. The identification of this vulnerability is CVE-2020-17525. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apache Subversion up to 1.10.6/1.14.0 (Versioning Software) and classified as problematic. This vulnerability affects an unknown code of the component mod_authz_svn. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability.

The weakness was shared 03/18/2021. The advisory is shared for download at subversion.apache.org. This vulnerability was named CVE-2020-17525. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 236667 (Alibaba Cloud Linux 3 : 0018: subversion:1.10 (ALINUX3-SA-2021:0018)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.10.7 or 1.14.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (236667). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236667
Nessus Name: Alibaba Cloud Linux 3 : 0018: subversion:1.10 (ALINUX3-SA-2021:0018)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Subversion 1.10.7/1.14.1

Timelineinfo

08/12/2020 🔍
03/18/2021 +218 days 🔍
03/18/2021 +0 days 🔍
05/18/2025 +1522 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: subversion.apache.org
Status: Confirmed

CVE: CVE-2020-17525 (🔍)
GCVE (CVE): GCVE-0-2020-17525
GCVE (VulDB): GCVE-100-171364

Entryinfo

Created: 03/18/2021 07:21
Updated: 05/18/2025 19:12
Changes: 03/18/2021 07:21 (39), 04/02/2021 09:10 (5), 04/02/2021 09:16 (18), 05/18/2025 19:12 (17)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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