Moderate: libtasn1 security update
Summary
ALSA-2023:0343: Moderate: libtasn1 security update. Affects libtasn1 versions < 4.16.0-8.el9_1. Fixed in 4.16.0-8.el9_1. How to fix ↓
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Background
libtasn1 is a library that provides Abstract Syntax Notation One (ASN.1) parsing and structures management, as well as Distinguished Encoding Rules (DER) encoding and decoding functions. It is used to handle ASN.1 data and perform encoding and decoding operations. The library is widely used in various software applications and systems.
Vulnerability Detail
The libtasn1 library is affected by an out-of-bound access vulnerability in the ETYPE_OK function. This vulnerability, identified as CVE-2021-46848, can be exploited by an attacker to gain unauthorized access or execute arbitrary code on a system using a specially crafted ASN.1 data. The impact of this vulnerability can vary depending on the context in which the library is used, but it has the potential to lead to remote code execution or privilege escalation.
How To Fix
Minimum fixed version
4.16.0-8.el9_1
This is the first release that contains the fix.
sudo dnf update libtasn1Tip — 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 security update provided by the libtasn1 package to mitigate the risk.
Conclusion
It is crucial to update the libtasn1 package to the latest version to address the out-of-bound access vulnerability. Failure to do so may expose systems to potential unauthorized access or code execution. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for libtasn1 →
FAQ
libtasn1 is a library that provides ASN.1 parsing and encoding functions.
The vulnerability can allow an attacker to gain unauthorized access or execute arbitrary code.
Update the libtasn1 package to version 4.16.0-8.el9_1 or later.
No, there is no known workaround for this vulnerability.
You can find more information about this vulnerability in the CVE page: CVE-2021-46848.
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