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."

Published: Nov 29, 2019
Updated: Apr 13, 2023
CVE: CVE-2015-0837
Severity: Medium
Exploit:

CVSS v3:

Severity: Medium
Score: 5.9
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2:

Severity: Low
Score: 4.3
AV:N/AC:M/Au:N/C:P/I:N/A:N

CWEs:

CWE-203

Affected Software
References

Software	From	Fixed in
gnupg / gnupg	-	1.4.19
gnupg / libgcrypt	-	1.6.3
debian / debian_linux	8.0	8.0.x
debian / debian_linux	7.0	7.0.x

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

Vulnerability Database

CVE-2015-0837

Deep Security Visibility Without the Complexity