CVE-2021-43568

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

The verify function in the Stark Bank Elixir ECDSA library (ecdsa-elixir) 1.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Nov 9, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-435699.8The verify function in the Stark Bank .NET ECDSA library (ecdsa-dotnet) 1.3.1 fails to check that the signature is non-zero, which allows atCVE-2021-43575.3The uListing plugin for WordPress is vulnerable to authorization bypass due to missing capability checks, and a missing security nonce, on tCVE-2021-435709.8The verify function in the Stark Bank Java ECDSA library (ecdsa-java) 1.0.0 fails to check that the signature is non-zero, which allows attaCVE-2021-435719.8The verify function in the Stark Bank Node.js ECDSA library (ecdsa-node) 1.1.2 fails to check that the signature is non-zero, which allows aCVE-2021-435729.8The verify function in the Stark Bank Python ECDSA library (aka starkbank-escada or ecdsa-python) before 2.0.1 fails to check that the signaCVE-2021-435739.8A buffer overflow was discovered on Realtek RTL8195AM devices before 2.0.10. It exists in the client code when processing a malformed IE lenCVE-2021-435746.1WebAdmin Control Panel in Atmail 6.5.0 (a version released in 2012) allows XSS via the format parameter to the default URI. NOTE: This vulneCVE-2021-435755.5KNX ETS6 through 6.0.0 uses the hard-coded password ETS5Password, with a salt value of Ivan Medvedev, allowing local users to read project iCVE-2021-435766.5Jenkins pom2config Plugin 1.2 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks, allowing attackersCVE-2021-435777.1Jenkins OWASP Dependency-Check Plugin 5.1.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.CVE-2021-435788.1Jenkins Squash TM Publisher (Squash4Jenkins) Plugin 1.0.0 and earlier implements an agent-to-controller message that does not implement any CVE-2021-435797.8A stack-based buffer overflow in image_load_bmp() in HTMLDOC <= 1.9.13 results in remote code execution if the victim converts an HTML docum