CVE-2020-15900 : What You Need to Know
Learn about CVE-2020-15900, a memory corruption issue in Artifex Ghostscript 9.50 and 9.52 allowing file access control overrides. Find mitigation steps and affected versions.
A memory corruption issue in Artifex Ghostscript 9.50 and 9.52 could allow overriding file access controls due to a non-standard PostScript operator. The 'rsearch' calculation for the 'post' size could result in an underflow to max uint32_t.
Understanding CVE-2020-15900
Artifex Ghostscript versions 9.50 and 9.52 are affected by a memory corruption vulnerability that could be exploited to bypass file access controls.
What is CVE-2020-15900?
This CVE identifies a memory corruption issue in Artifex Ghostscript versions 9.50 and 9.52, allowing unauthorized file access due to a PostScript operator vulnerability.
The Impact of CVE-2020-15900
The vulnerability could lead to a security breach by enabling unauthorized users to override file access controls, potentially compromising sensitive data.
Technical Details of CVE-2020-15900
Artifex Ghostscript 9.50 and 9.52 are susceptible to a memory corruption flaw that could be exploited by malicious actors.
Vulnerability Description
The issue arises from a non-standard PostScript operator that can be abused to manipulate file access controls, potentially leading to unauthorized access.
Affected Systems and Versions
- Artifex Ghostscript 9.50
- Artifex Ghostscript 9.52
Exploitation Mechanism
The vulnerability allows attackers to override file access controls by manipulating the 'rsearch' calculation for the 'post' size, causing an underflow to max uint32_t.
Mitigation and Prevention
To address CVE-2020-15900, immediate actions and long-term security practices are essential.
Immediate Steps to Take
- Apply the security patch provided by Artifex Software to fix the vulnerability.
- Monitor for any unauthorized access or suspicious activities on the affected systems.
Long-Term Security Practices
- Regularly update and patch software to prevent known vulnerabilities.
- Implement access controls and restrictions to limit unauthorized file access.
Patching and Updates
Ensure that all systems running Artifex Ghostscript are updated with the latest patches and security fixes to mitigate the risk of exploitation.