PT-2018-4632 · Bouncy Castle+3 · Bouncy Castle Jce Provider+4

Published 2018-06-01 · Updated 2025-05-05 · CVE-2016-1000338

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Bouncy Castle JCE Provider versions 1.55 and earlier

Description The issue concerns the DSA in the Bouncy Castle JCE Provider, which does not fully validate ASN.1 encoding of a signature during verification. This allows for the injection of extra elements into the sequence that makes up the signature, enabling it to still validate. In some cases, this could allow the introduction of 'invisible' data into a signed structure.

Recommendations For Bouncy Castle JCE Provider versions 1.55 and earlier, update to a version later than 1.55 to resolve the issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability in Jira Work Management and Jira Software.

Fix

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

CVE-2016-1000338

DLA-1418-1

GHSA-4VHJ-98R6-424H

MGASA-2018-0376

OPENSUSE-SU-2018_1689-1

OPENSUSE-SU-2024:10661-1

RHSA-2018:2927

USN-3727-1

Affected Products

Bouncy Castle Jce Provider

Jira

Jira Work Management

Suse

Ubuntu

References · 54

• https://github.com/bcgit/bc-java/commit/b0c3ce99d43d73a096268831d0d120ffc89eac7f#diff-3679f5a9d2b939d0d3ee1601a7774fb0 · Patch
• https://ubuntu.com/security/notices/USN-3727-1 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:2669 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-1000342 · Vendor Advisory
• https://usn.ubuntu.com/3727-1 · Vendor Advisory
• https://debian.org/security/2018/dsa-4233 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-1418-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3727-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-1000338 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10661-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-1000345 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-1000338 · Security Note
• https://access.redhat.com/errata/RHSA-2018:2927 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-1000339 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-6644 · Vendor Advisory