CVE-2016-1000338
bouncycastle - security update
7.5
HIGH
CVSS 3.1
EPSS 0.37%
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.
How to fix CVE-2016-1000338
To remediate CVE-2016-1000338, upgrade the affected package to a fixed version below.
- —upgrade to 1.56-1 or later
- —upgrade to 1.49+dfsg-3+deb8u3 or later
- —upgrade to 1.56 or later
- —upgrade to 1.56 or later
- —upgrade to 1.56 or later
Is CVE-2016-1000338 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0, < 1.56-1
- from 0, < 1.49+dfsg-3+deb8u3
- >= 1.38, < 1.56
- >= 1.38, < 1.56
- >= 1.38, < 1.56
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |