SB2023041144 - Multiple vulnerabilities in libxml2

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Main Vulnerability Database SB2023041144

SB2023041144 - Multiple vulnerabilities in libxml2

Published: April 11, 2023

Security Bulletin ID SB2023041144
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Resource management error (CVE-ID: CVE-2023-29469)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources when working with hashes of empty dict strings. A remote attacker can and perform a denial of service (DoS) attack.


2) NULL pointer dereference (CVE-ID: CVE-2023-28484)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in xmlSchemaFixupComplexType. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


3) NULL pointer dereference (CVE-ID: CVE-2023-42869)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in xmlSchemaCheckCOSSTDerivedOK. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References