CVE-2023-0597: Vulnerability in linux-libc-dev - Randomize per-cpu entry area
Summary
CVE-2023-0597: A flaw possibility of memory leak in the Linux kernel cpu_entry_area mapping of X86 CPU data to memory was found in the way user can guess location of exception stack(s) or other important data. Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
linux-libc-dev is a package in the Debian operating system that provides the C library development files for the Linux kernel. It is responsible for defining the interfaces between the kernel and user-space applications. This vulnerability affects version 6.1.90-1 of the linux-libc-dev package.
Vulnerability Detail
The vulnerability identified as CVE-2023-0597 is a flaw in the Linux kernel's cpu_entry_area mapping of X86 CPU data to memory. It allows a local user to potentially guess the location of exception stack(s) or other important data, leading to a memory leak. An attacker exploiting this flaw could gain unauthorized access to important data with an expected location in memory. The vulnerability has a CVSS score of 5.5, indicating a medium severity level.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The vulnerability in the linux-libc-dev package allows a local user to potentially guess the location of important data in memory, leading to a memory leak and unauthorized access. It is recommended to update the package to a version that includes the necessary security patches. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
linux-libc-dev is a package in the Debian operating system that provides the C library development files for the Linux kernel.
The vulnerability allows a local user to potentially guess the location of important data in memory, leading to a memory leak and unauthorized access to sensitive information.
To fix this vulnerability, it is recommended to update the linux-libc-dev package to a version that includes the necessary security patches.
No specific workaround has been mentioned for this vulnerability.
The vulnerability has a CVSS score of 5.5, indicating a medium severity level.
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