Discover the details of CVE-2023-43785, a vulnerability in libX11 library impacting Red Hat Enterprise Linux and Fedora. Learn about the impact, affected versions, and mitigation steps.
A detailed look into the out-of-bounds memory access vulnerability in libX11 library affecting multiple Red Hat Enterprise Linux versions and Fedora.
Understanding CVE-2023-43785
This CVE involves an out-of-bounds memory access vulnerability in the _XkbReadKeySyms() function within the libX11 library. The flaw allows a local user to trigger an out-of-bounds read error, potentially exposing sensitive information stored in memory.
What is CVE-2023-43785?
A boundary condition issue in the _XkbReadKeySyms() function of libX11 enables a local attacker to perform an out-of-bounds memory read, leading to a potential data exposure threat on the system.
The Impact of CVE-2023-43785
The impact of CVE-2023-43785 is rated as moderate, with a base severity rating of 6.5 (Medium). This vulnerability poses a high risk to the confidentiality of the system's data.
Technical Details of CVE-2023-43785
This section covers the vulnerability description, affected systems, and exploitation mechanism related to CVE-2023-43785.
Vulnerability Description
The vulnerability arises due to a boundary condition issue in the _XkbReadKeySyms() function of the libX11 library, allowing a local user to trigger an out-of-bounds memory read error.
Affected Systems and Versions
Exploitation Mechanism
The vulnerability can be exploited by a local user to read the contents of memory on the system, potentially leading to the exposure of sensitive data.
Mitigation and Prevention
Discover immediate steps to take and long-term security practices to safeguard systems against CVE-2023-43785.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Apply security patches and updates provided by the vendors to mitigate the vulnerability effectively.