Vulnerability in libgcrypt11 - Elgamal Encryption Subkeys Leakage
Summary
DSA-3073-1: libgcrypt11 - security update. Affects libgcrypt11 versions < 1.5.0-5+deb7u2. Fixed in 1.5.0-5+deb7u2. How to fix ↓
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Background
libgcrypt11 is a library used by various applications, including GnuPG 2.x, for cryptographic operations. It provides functions for secure encryption, decryption, and key management. The library is widely used in the Debian 7 ecosystem. However, a vulnerability has been discovered in the Elgamal encryption subkeys implementation, which could lead to the leakage of sensitive information.
Vulnerability Detail
The vulnerability in libgcrypt11 allows for the leakage of Elgamal encryption subkeys through a side-channel attack. This means that an attacker could potentially extract these subkeys by analyzing the physical characteristics of the system during cryptographic operations. The impact of this vulnerability is significant as it could compromise the confidentiality of encrypted data and potentially lead to unauthorized access to sensitive information.
How To Fix
Minimum fixed version
1.5.0-5+deb7u2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade libgcrypt11Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
The vulnerability in libgcrypt11 can lead to the leakage of Elgamal encryption subkeys, compromising the confidentiality of encrypted data. It is crucial to upgrade the libgcrypt11 package to the fixed version to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for libgcrypt11 →
FAQ
libgcrypt11 is a cryptographic library used by various applications for secure encryption, decryption, and key management.
The vulnerability allows for the leakage of Elgamal encryption subkeys, which could compromise the confidentiality of encrypted data and potentially lead to unauthorized access to sensitive information.
Applications using the libgcrypt11 library, such as GnuPG 2.x, are affected by this vulnerability.
To fix this vulnerability, it is recommended to upgrade the libgcrypt11 package to version 1.5.0-5+deb7u2 or later.
No specific workaround has been provided for this vulnerability. It is recommended to apply the fix by upgrading the libgcrypt11 package.
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