Description
In the Bouncy Castle JCE Provider version 1.55 and earlier ECDSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of 'invisible' data into a signed structure.
Remediation
References
https://access.redhat.com/errata/RHSA-2018:2669
https://access.redhat.com/errata/RHSA-2018:2927
https://github.com/bcgit/bc-java/commit/843c2e60f67d71faf81d236f448ebbe56c62c647#diff-25c3c78db788365f36839b3f2d3016b9
https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html
https://security.netapp.com/advisory/ntap-20181127-0004/
https://usn.ubuntu.com/3727-1/
https://www.oracle.com/security-alerts/cpuoct2020.html
Related Vulnerabilities
CVE-2022-36944 Vulnerability in maven package org.scala-lang:scala-library
CVE-2017-5662 Vulnerability in maven package org.eclipse.birt.runtime.3_7_1:org.apache.batik.dom
CVE-2021-21347 Vulnerability in maven package com.thoughtworks.xstream:xstream
CVE-2020-26870 Vulnerability in maven package org.webjars.npm:dompurify
CVE-2022-29166 Vulnerability in npm package matrix-appservice-irc