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In the Bouncy Castle JCE Provider version 1.55 and earlier the DHIES/ECIES CBC mode…

Priority LOW 31CWE-361Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 3 fixed, 4 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat.

Summary

In the Bouncy Castle JCE Provider version 1.55 and earlier the DHIES/ECIES CBC mode vulnerable to padding oracle attack. For BC 1.55 and older, in an environment where timings can be easily observed, it is possible with enough observations to identify when the decryption is failing due to padding.

Why it matters now

EPSS 0.02661 85th percentileScored 2026-11-07
Fix Partial org.bouncycastle:bcprov-jdk14 (Maven): 1.56org.bouncycastle:bcprov-jdk15 (Maven): 1.56+1 more productRed Hat: 2 advisoriesRed Hat: 3 fixed, 4 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—org.bouncycastle:bcprov-jdk14 (Maven)before 1.561.56Patch availableGHSA-9gp4-qrff-c648
—org.bouncycastle:bcprov-jdk15 (Maven)before 1.561.56Patch availableGHSA-9gp4-qrff-c648
—org.bouncycastle:bcprov-jdk15on (Maven)before 1.561.56Patch availableGHSA-9gp4-qrff-c648
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • org.bouncycastle:bcprov-jdk14 (Maven) Vendor— Affected before 1.56 Fixed in 1.56 Patch available GHSA-9gp4-qrff-c648
  • org.bouncycastle:bcprov-jdk15 (Maven) Vendor— Affected before 1.56 Fixed in 1.56 Patch available GHSA-9gp4-qrff-c648
  • org.bouncycastle:bcprov-jdk15on (Maven) Vendor— Affected before 1.56 Fixed in 1.56 Patch available GHSA-9gp4-qrff-c648

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:bouncycastle:bc-java:*:*:*:*:*:*:*:*up to 1.55VulnerableLegion of the Bouncy Castle Inc.
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:a:bouncycastle:bc-java:*:*:*:*:*:*:*:* Versions up to 1.55 Vulnerable ·Legion of the Bouncy Castle Inc.
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

  • Fix · GHSA-9gp4-qrff-c648 org.bouncycastle:bcprov-jdk14 (Maven) Fixed in 1.56 Advisory →
  • Fix · GHSA-9gp4-qrff-c648 org.bouncycastle:bcprov-jdk15 (Maven) Fixed in 1.56 Advisory →
  • Fix · GHSA-9gp4-qrff-c648 org.bouncycastle:bcprov-jdk15on (Maven) Fixed in 1.56 Advisory →

Red Hat 2 advisories

  • RHSA-2018:2927 Released 2018-10-16 · Red Hat rating Important
    Satellite 6.4 security, bug fix, and enhancement update
    • Red Hat Satellite 6.4 SOAPpy-0.11.6-17.el7, ansiblerole-insights-client-1.5-1.el7sat, candlepin-2.4.8-1.el7 +47
    • Red Hat Satellite Capsule 6.4 SOAPpy-0.11.6-17.el7, ansiblerole-insights-client-1.5-1.el7sat, createrepo_c-0.7.4-1.el7sat +47
  • RHSA-2018:2669 Released 2018-09-11 · Red Hat rating Important
    Fuse 7.1 security update
    • Red Hat Fuse 7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat JBoss Data Virtualization 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Fuse 6AffectedNo fix planned: Will not fix
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Red Hat Subscription Asset ManagerAffectedNo fix planned: Will not fix
Red Hat Fuse 7Fixed RHSA-2018:2669
Red Hat Satellite 6.4Fixed RHSA-2018:2927
Red Hat Satellite Capsule 6.4Fixed RHSA-2018:2927
Not affected: 9 products
  • JBoss Developer Studio 11
  • Red Hat JBoss Data Grid 7
  • Red Hat JBoss Enterprise Application Platform 7
  • Red Hat JBoss Fuse Integration Service 2
  • Red Hat OpenShift Application Runtimes
  • Red Hat Satellite 6.4
  • Red Hat Satellite Capsule 6.4
  • Red Hat Single Sign-On 7
  • Red Hat Virtualization 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-1000345
  2. 2026-10-03 Alias added: GHSA-9gp4-qrff-c648
  3. 2026-11-03 Fix available: Red Hat Fuse 7 · Red Hat

References

Sources