libxml2 2.9.10 xmlschemas.c xmlSchemaPreRun denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in libxml2 2.9.10. Affected by this issue is the function xmlSchemaPreRun of the file xmlschemas.c. Executing a manipulation can lead to denial of service. The identification of this vulnerability is CVE-2019-20388. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in libxml2 2.9.10 (Document Processing Software). This vulnerability affects the function xmlSchemaPreRun of the file xmlschemas.c. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak.

The weakness was shared 01/21/2020. This vulnerability was named CVE-2019-20388 since 01/21/2020. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 233181 (Oracle Linux 7 : libxml2 (ELSA-2025-2673)), 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 (233181). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: 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: 233181
Nessus Name: Oracle Linux 7 : libxml2 (ELSA-2025-2673)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2020 🔍
01/21/2020 +0 days 🔍
01/22/2020 +1 days 🔍
12/18/2025 +2156 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2019-20388 (🔍)
GCVE (CVE): GCVE-0-2019-20388
GCVE (VulDB): GCVE-100-149194

Entryinfo

Created: 01/22/2020 12:00
Updated: 12/18/2025 00:05
Changes: 01/22/2020 12:00 (36), 01/22/2020 12:05 (18), 03/21/2025 22:10 (17), 12/18/2025 00:05 (1)
Complete: 🔍
Cache ID: 216::103

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

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