CVE-2019-20051 Explained : Impact and Mitigation
Discover the impact of CVE-2019-20051 on UPX version 3.95. Learn about the denial of service vulnerability caused by a floating-point arithmetic error and how to mitigate it.
UPX version 3.95 is affected by a vulnerability in the function PackLinuxElf::elf_hash, leading to a denial of service due to a floating-point arithmetic error.
Understanding CVE-2019-20051
This CVE involves a weakness in UPX version 3.95 that can cause an application to crash unexpectedly, resulting in a denial of service.
What is CVE-2019-20051?
A floating-point exception in the function PackLinuxElf::elf_hash in UPX 3.95 causes the application to crash, leading to a denial of service.
The Impact of CVE-2019-20051
The vulnerability results in the application shutting down unexpectedly, causing a denial of service.
Technical Details of CVE-2019-20051
UPX version 3.95 is affected by a vulnerability in the function PackLinuxElf::elf_hash.
Vulnerability Description
The error related to floating-point arithmetic in PackLinuxElf::elf_hash of UPX version 3.95 causes the application to shut down unexpectedly, resulting in a denial of service.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Version: 3.95
Exploitation Mechanism
The vulnerability is exploited by triggering the floating-point arithmetic error in the function PackLinuxElf::elf_hash.
Mitigation and Prevention
To address CVE-2019-20051, consider the following steps:
Immediate Steps to Take
- Update UPX to a patched version.
- Monitor vendor advisories for security patches.
Long-Term Security Practices
- Regularly update software to the latest versions.
- Implement secure coding practices to prevent similar vulnerabilities.
Patching and Updates
Apply patches provided by the vendor to mitigate the vulnerability.