Vulnerability in Bouncycastle Legion-Of-The-Bouncy-Castle-Java-Crytography-Api
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 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.018 (78.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.018 · change: -0.001
Affected products
- Bouncycastle Legion-Of-The-Bouncy-Castle-Java-Crytography-Api
- NetApp 7-Mode Transition Tool
- Canonical Ubuntu Linux — versions 14.04
- Red Hat Satellite — versions 6.4
- Red Hat Satellite Capsule — versions 6.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.debian.org/debian-lts-announce/2018/07/msg00009.html (mailing-list, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2669 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3727-1/ (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2927 (vendor-advisory, Third Party Advisory)
- lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535… (mailing-list, Third Party Advisory)
- www.oracle.com/security-alerts/cpuoct2020.html (Third Party Advisory)
- github.com/bcgit/bc-java/commit/b0c3ce99d43d73a096268831d0d120ffc89eac7f (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20231006-0011/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2016-1000338?
- CVE-2016-1000338 is a high-severity vulnerability in Bouncycastle Legion-Of-The-Bouncy-Castle-Java-Crytography-Api, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2018-06-01.
- How severe is CVE-2016-1000338?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-1000338 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.