CVE-2015-0837

The mpi_powm 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."

Score

CVSS 3.1 5.9 Medium

Status

Modified - security@debian.org

Published

2019-11-29

Last modified

2024-08-06

Weaknesses

CWE-203

Affected products

• Debian Linux (Debian)
• Gnupg (Gnu)
• Libgcrypt (Gnu)
• Gnupg (Gnupg)
• Libgcrypt (Gnupg)

References

• http://www.debian.org/security/2015/dsa-3184
• http://www.debian.org/security/2015/dsa-3185
• https://ieeexplore.ieee.org/document/7163050
• https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html
• https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.html