SB2025082710 - Anolis OS update for expat
Published: August 27, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) 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.
2) Buffer Underwrite ('Buffer Underflow') (CVE-ID: CVE-2024-45490)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a boundary error in xmlparse.c when handling negative length for XML_ParseBuffer. A remote attacker can pass specially crafted input to the application, trigger buffer underflow and execute arbitrary code on the system.
3) Integer overflow (CVE-ID: CVE-2024-45491)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow within the dtdCopy() function in xmlparse.c. A remote attacker can pass specially crafted input to the application, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Integer overflow (CVE-ID: CVE-2024-45492)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow within the nextScaffoldPart() function in xmlparse.c. A remote attacker can pass specially crafted data to the application, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) Input validation error (CVE-ID: CVE-2024-50602)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the XML_ResumeParser function. A remote attacker can pass specially crafted XML input to the application and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.