Vulnerability in libidn - Out-of-Bounds Read
Summary
DLA-476-1: libidn - security update. Affects libidn versions < 1.25-2+deb7u1. Fixed in 1.25-2+deb7u1. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
libidn is a GNU library for Internationalized Domain Names (IDNs). It provides functionality for handling IDNs, which are domain names that include non-ASCII characters. This library is commonly used by applications to support IDNs and ensure proper handling of domain names in different languages. However, a vulnerability has been discovered in libidn that allows attackers to disclose sensitive information from applications using the library.
Vulnerability Detail
The vulnerability in libidn arises from its incorrect handling of invalid UTF-8 input. When presented with invalid UTF-8 input, libidn performs an out-of-bounds read operation. This can be exploited by attackers to access sensitive information stored in memory, potentially leading to unauthorized disclosure of data. The vulnerability poses a risk to any application that utilizes the libidn library for IDN handling.
How To Fix
Minimum fixed version
1.25-2+deb7u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade libidnTip — 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. Upgrading to the fixed version of the libidn package is the only reliable solution.
Conclusion
The vulnerability in libidn can allow attackers to disclose sensitive information from applications using the library. It is crucial to upgrade the libidn package to the fixed version to mitigate the risk of data disclosure. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for libidn →
FAQ
libidn is a GNU library for Internationalized Domain Names (IDNs). It provides functionality for handling IDNs, allowing applications to support domain names in different languages.
The vulnerability in libidn can be exploited by attackers to access sensitive information from applications using the library. This could lead to unauthorized disclosure of data.
To fix this vulnerability, you should upgrade the libidn package to version 1.25-2+deb7u1 or later. This updated version includes the necessary patches to address the issue.
No, there is no known workaround for this vulnerability. Upgrading to the fixed version of the libidn package is the only reliable solution.
For more information about this vulnerability, you can refer to the Debian Security Advisory DLA-476-1.
Related vulnerabilities
Recent vulnerabilities recorded for libidn.
