CVE-2016-1000342GHSA-QCJ7-G2J5-G7R3
In the Bouncy Castle JCE Provider version 1.55 and earlier ECDSA does not fully validate ASN.1 encoding of signature on verification.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.56
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- n/a n/a
Version range not reported
- org.bouncycastle:bcprov-jdk14Maven
fixed in 1.56
- org.bouncycastle:bcprov-jdk15Maven
fixed in 1.56
- org.bouncycastle:bcprov-jdk15onMaven
fixed in 1.56