libxml2 up to 2.9.10 XML Document null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in libxml2 up to 2.9.10. Affected is an unknown function of the component XML Document Handler. Executing a manipulation can lead to null pointer dereference. This vulnerability is registered as CVE-2021-3537. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in libxml2 up to 2.9.10 (Document Processing Software). This vulnerability affects some unknown functionality of the component XML Document Handler. 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 published 05/15/2021. The advisory is shared for download at lists.debian.org. This vulnerability was named CVE-2021-3537. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 236735 (Alibaba Cloud Linux 3 : 0047: libxml2 (ALINUX3-SA-2021:0047)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.9.11 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (236735). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

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

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236735
Nessus Name: Alibaba Cloud Linux 3 : 0047: libxml2 (ALINUX3-SA-2021:0047)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libxml2 2.9.11

Timelineinfo

05/05/2021 🔍
05/15/2021 +10 days 🔍
05/15/2021 +0 days 🔍
05/16/2025 +1462 days 🔍

Sourcesinfo

Advisory: lists.debian.org
Status: Confirmed

CVE: CVE-2021-3537 (🔍)
GCVE (CVE): GCVE-0-2021-3537
GCVE (VulDB): GCVE-100-175240

Entryinfo

Created: 05/15/2021 18:39
Updated: 05/16/2025 06:07
Changes: 05/15/2021 18:39 (38), 05/20/2021 03:16 (5), 05/16/2025 06:07 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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