CVE-2015-0837

Description

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."

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.55%
Vendor Advisory gnupg.org Vendor Advisory gnupg.org
Affected: GNU Libgcrypt
Affected: GNU GnuPG
Published at:
Updated at:

References

Link Tags
http://www.debian.org/security/2015/dsa-3184 third party advisory
http://www.debian.org/security/2015/dsa-3185 third party advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html mailing list vendor advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.html mailing list vendor advisory
https://ieeexplore.ieee.org/document/7163050 third party advisory

Frequently Asked Questions

What is the severity of CVE-2015-0837?
CVE-2015-0837 has been scored as a medium severity vulnerability.
How to fix CVE-2015-0837?
To fix CVE-2015-0837, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-0837 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-0837 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2015-0837?
CVE-2015-0837 affects GNU Libgcrypt, GNU GnuPG.
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