Moderate: Cyrus-SASL Denial of Service Vulnerability
Summary
ALSA-2020:4497: Moderate: cyrus-sasl security, bug fix, and enhancement update. Affects cyrus-sasl-sql versions < 2.1.27-5.el8. Fixed in 2.1.27-5.el8. How to fix ↓
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Background
Cyrus-SASL is an implementation of the Simple Authentication and Security Layer (SASL) protocol, which provides authentication support to connection-based protocols. It is widely used in various applications and systems for secure authentication. The vulnerability identified in this report can lead to a denial of service (DoS) attack.
Vulnerability Detail
The vulnerability (CVE-2019-19906) exists in the _sasl_add_string function of the Cyrus-SASL package. An attacker can exploit this flaw to cause a DoS condition by sending specially crafted input. The impact of this vulnerability can result in service disruption, leading to unavailability of the affected system or application. The Common Vulnerability Scoring System (CVSS) score and other related information can be found in the referenced CVE page.
How To Fix
Minimum fixed version
2.1.27-5.el8
This is the first release that contains the fix.
sudo dnf update cyrus-sasl-sqlTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to apply the provided fix by updating the Cyrus-SASL package to the recommended version.
Conclusion
The identified vulnerability in the Cyrus-SASL package can lead to a denial of service (DoS) attack. To mitigate this risk, it is crucial to update the package to version 2.1.27-5.el8 or later. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for cyrus-sasl-sql →
FAQ
Cyrus-SASL is an implementation of the Simple Authentication and Security Layer (SASL) protocol, which adds authentication support to connection-based protocols.
The vulnerability can lead to a denial of service (DoS) attack, causing service disruption and unavailability of the affected system or application.
To fix this vulnerability, update the Cyrus-SASL package to version 2.1.27-5.el8 or later using the package manager specific to your operating system.
No, there is no known workaround for this vulnerability. It is crucial to apply the provided fix by updating the Cyrus-SASL package.
You can find more information about the vulnerability, including the CVSS score and related details, on the referenced CVE page.
