syslinux Bug Fix and Enhancement Update

syslinux Updated 02 Oct 2025

Summary

18/05/2021
N/A
Yes i
Unrated
Not published

ALBA-2021:1640: syslinux bug fix and enhancement update. Affects syslinux versions < 6.04-5.el8. Fixed in 6.04-5.el8. How to fix ↓

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Background

syslinux is a collection of boot loaders for Linux that allows users to boot their systems using various methods, such as from a local disk, network, or USB drive. It provides a flexible and customizable boot environment for Linux-based operating systems. However, a vulnerability has been discovered in syslinux versions prior to 6.04-5.el8, which could potentially be exploited by attackers to execute arbitrary code or cause a denial of service.

Vulnerability Detail

The vulnerability in syslinux arises from a flaw in the code that handles certain input data. By sending specially crafted input to the affected system, an attacker may be able to trigger a buffer overflow or other memory corruption issues, leading to the execution of arbitrary code or a system crash. This could result in a complete compromise of the system or disruption of its normal operation.

How To Fix

Minimum fixed version

6.04-5.el8

This is the first release that contains the fix.

sudo dnf update syslinux

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Workaround

There is no known workaround for this vulnerability. It is essential to apply the provided fix by updating the syslinux package to the recommended version.

Conclusion

The syslinux bug fix and enhancement update addresses a vulnerability that could potentially allow attackers to execute arbitrary code or cause a denial of service. It is crucial to update the syslinux package to version 6.04-5.el8 or later to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.

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FAQ

syslinux is a collection of boot loaders for Linux that provides a flexible and customizable boot environment for Linux-based operating systems.

The vulnerability could allow attackers to execute arbitrary code or cause a denial of service, potentially leading to a complete compromise of the system or disruption of its normal operation.

To fix this vulnerability, update the syslinux package to version 6.04-5.el8 or later.

No, there is no known workaround. It is crucial to apply the provided fix by updating the syslinux package.

The update can be obtained from the official AlmaLinux repositories or through the package management system of the operating system.

How To Fix

Minimum fixed version

6.04-5.el8

This is the first release that contains the fix.

sudo dnf update syslinux

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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