Rapid7 Vulnerability & Exploit Database

SUSE: CVE-2021-20305: SUSE Linux Security Advisory

Back to Search

SUSE: CVE-2021-20305: SUSE Linux Security Advisory

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
04/05/2021
Created
04/30/2021
Added
04/29/2021
Modified
07/19/2021

Description

A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.

Solution(s)

  • suse-upgrade-libhogweed2
  • suse-upgrade-libhogweed2-32bit
  • suse-upgrade-libhogweed4
  • suse-upgrade-libhogweed4-32bit
  • suse-upgrade-libhogweed4-32bit-debuginfo
  • suse-upgrade-libhogweed4-debuginfo
  • suse-upgrade-libnettle-debugsource
  • suse-upgrade-libnettle-devel
  • suse-upgrade-libnettle-devel-32bit
  • suse-upgrade-libnettle4
  • suse-upgrade-libnettle4-32bit
  • suse-upgrade-libnettle6
  • suse-upgrade-libnettle6-32bit
  • suse-upgrade-libnettle6-32bit-debuginfo
  • suse-upgrade-libnettle6-debuginfo
  • suse-upgrade-nettle
  • suse-upgrade-nettle-debuginfo

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;