Security Update for libtasn1-3
Summary
DSA-3056-1: libtasn1-3 - security update. Affects libtasn1-3 versions < 2.13-2+deb7u1. Fixed in 2.13-2+deb7u1. How to fix ↓
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Background
libtasn1-3 is a library that manages ASN1 (Abstract Syntax Notation One) structures. It is used in various applications to handle encoding and decoding of data structures defined using ASN1. The library is an essential component for applications that require secure communication protocols such as SSL/TLS. However, several vulnerabilities have been discovered in libtasn1-3 that could be exploited by attackers to cause a denial-of-service through out-of-bounds access or NULL pointer dereference.
Vulnerability Detail
The vulnerabilities in libtasn1-3 could allow an attacker to manipulate the ASN1 structures in a way that leads to out-of-bounds access or NULL pointer dereference. These vulnerabilities can be exploited remotely, potentially resulting in a denial-of-service attack. By sending specially crafted ASN1 data, an attacker could cause the application to crash or consume excessive resources, leading to a loss of service. The impact of these vulnerabilities depends on the specific application using libtasn1-3 and its exposure to untrusted ASN1 data.
How To Fix
Minimum fixed version
2.13-2+deb7u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade libtasn1-3Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
libtasn1-3 is prone to multiple vulnerabilities that could be exploited by attackers to cause a denial-of-service. It is crucial to upgrade the libtasn1-3 packages to the latest version to mitigate these vulnerabilities. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for libtasn1-3 →
FAQ
libtasn1-3 is a library that manages ASN1 structures used in various applications for secure communication protocols.
The vulnerabilities in libtasn1-3 allow attackers to cause a denial-of-service through out-of-bounds access or NULL pointer dereference.
By sending specially crafted ASN1 data, an attacker can manipulate the ASN1 structures to trigger the vulnerabilities.
The impact depends on the specific application using libtasn1-3 and its exposure to untrusted ASN1 data. It can result in a denial-of-service attack.
To fix these vulnerabilities, upgrade the libtasn1-3 packages to version 2.13-2+deb7u1 or later using the package manager of your operating system.
Related vulnerabilities
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