CVE-2020-21913 : Security Advisory and Response

International Components for Unicode (ICU-20850) v66.1 was discovered to contain a use after free bug in the pkg_createWithAssemblyCode function in the file tools/pkgdata/pkgdata.cpp.

Understanding CVE-2020-21913

This CVE involves a vulnerability in ICU-20850 v66.1 that could be exploited through a use after free bug.

What is CVE-2020-21913?

The CVE-2020-21913 vulnerability is a use after free bug found in the pkg_createWithAssemblyCode function within the file tools/pkgdata/pkgdata.cpp in ICU-20850 v66.1.

The Impact of CVE-2020-21913

The vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by exploiting the use after free bug in the affected function.

Technical Details of CVE-2020-21913

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability exists in the pkg_createWithAssemblyCode function in the file tools/pkgdata/pkgdata.cpp within ICU-20850 v66.1, allowing for potential exploitation.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: ICU-20850 v66.1

Exploitation Mechanism

The vulnerability can be exploited by manipulating the use after free bug in the pkg_createWithAssemblyCode function, potentially leading to arbitrary code execution or denial of service.

Mitigation and Prevention

Protecting systems from CVE-2020-21913 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Monitor vendor advisories and security mailing lists for updates.

Long-Term Security Practices

Conduct regular security assessments and audits.
Implement secure coding practices to prevent similar vulnerabilities.

Patching and Updates

Regularly update ICU to the latest version to ensure that security patches are applied.