CVE-2015-0837: Medium severity gnupg 2 (gnu privacy guard) vulnerability
The mpipowm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a "Last-Level Cache Side-Channel Attack."
Affected Software
Event History
Frequently Asked Questions
What is CVE-2015-0837?
CVE-2015-0837 is a vulnerability in Libgcrypt and GnuPG that allows attackers to obtain sensitive information through a timing-based side-channel attack.
How does CVE-2015-0837 work?
CVE-2015-0837 leverages timing differences when accessing a pre-computed table during modular exponentiation, allowing attackers to obtain sensitive information.
What software is affected by CVE-2015-0837?
GnuPG versions up to and excluding 1.4.19 and Libgcrypt versions up to and excluding 1.6.3 are affected by CVE-2015-0837.
What is the severity of CVE-2015-0837?
CVE-2015-0837 has a severity rating of 5.9, which is considered medium.
How can I fix CVE-2015-0837?
To fix CVE-2015-0837, users should update to GnuPG version 1.4.19 or newer and Libgcrypt version 1.6.3 or newer.