CVE-2016-1000338
In Bouncy Castle JCE Provider version 1.55 and earlier the DSA does not fully validate ASN.1 encoding of signature on verification. It is…
- 7.5HighCVSS base score
- 1.8%Exploitation in 30 daysEPSS · top 22% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In Bouncy Castle JCE Provider version 1.55 and earlier the DSA 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
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 1.8% · top 22% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.bouncycastle:bcprov-jdk14GHSA-4vhj-98r6-424h (opens in a new tab)
- Mavenorg.bouncycastle:bcprov-jdk15GHSA-4vhj-98r6-424h (opens in a new tab)
- Mavenorg.bouncycastle:bcprov-jdk15onGHSA-4vhj-98r6-424h (opens in a new tab)
References
8
- [debian-lts-announce] 20180707 [SECURITY] [DLA 1418-1] bouncycastle security update (opens in a new tab)mailing-listx_transferred
- RHSA-2018:2669 (opens in a new tab)vendor-advisoryx_transferred
- USN-3727-1 (opens in a new tab)vendor-advisoryx_transferred
- RHSA-2018:2927 (opens in a new tab)vendor-advisoryx_transferred
- [lucene-solr-user] 20190104 Re: SOLR v7 Security Issues Caused Denial of Use - Sonatype Application Composition Report (opens in a new tab)mailing-listx_transferred
- https://www.oracle.com/security-alerts/cpuoct2020.html (opens in a new tab)x_transferred
- https://github.com/bcgit/bc-java/commit/b0c3ce99d43d73a096268831d0d120ffc89eac7f#diff-3679f5a9d2b939d0d3ee1601a7774fb0 (opens in a new tab)x_transferred
- https://security.netapp.com/advisory/ntap-20231006-0011/ (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-0506 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-4vhj-98r6-424h (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-1000338)Record last updated .