SB2024041255 - openEuler update for expat

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) XML Entity Expansion (CVE-ID: CVE-2023-52426)

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

The vulnerability exists due to recursive XML Entity Expansion if XML_DTD is undefined at compile time. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

2) XML External Entity injection (CVE-ID: CVE-2024-28757)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input when using external parsers via XML_ExternalEntityParserCreate. A remote attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1379