Apache Subversion up to 1.9.10/1.10.4/1.12.0 svnserve Server Process Disruption input validation

Summaryinfo

A vulnerability described as problematic has been identified in Apache Subversion up to 1.9.10/1.10.4/1.12.0. This issue affects some unknown processing of the component svnserve Server Process. Such manipulation leads to input validation (Disruption). This vulnerability is uniquely identified as CVE-2019-0203. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Apache Subversion up to 1.9.10/1.10.4/1.12.0 (Versioning Software) and classified as problematic. Affected by this issue is an unknown code block of the component svnserve Server Process. The manipulation with an unknown input leads to a input validation vulnerability (Disruption). Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

In Apache Subversion versions up to and including 1.9.10, 1.10.4, 1.12.0, Subversion's svnserve server process may exit when a client sends certain sequences of protocol commands. This can lead to disruption for users of the server.

The weakness was disclosed 09/26/2019. This vulnerability is handled as CVE-2019-0203 since 11/14/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 05/18/2025).

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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (236667). The entry VDB-142321 is pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Versioning Software

Vendor

• Apache

Name

• Subversion

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.9.0
• 1.9.1
• 1.9.2
• 1.9.3
• 1.9.4
• 1.9.5
• 1.9.6
• 1.9.7
• 1.9.8
• 1.9.9
• 1.9.10
• 1.10
• 1.10.0
• 1.10.1
• 1.10.2
• 1.10.3
• 1.10.4
• 1.11
• 1.12.0

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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