CVE-2016-1000338
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.86% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-347
- Affected
- bouncycastle/legion-of-the-bouncy-castle-java-crytography-api · redhat/satellite · redhat/satellite capsule · canonical/ubuntu linux · netapp/7-mode transition tool
- Source
- cve@mitre.org
References
- https://access.redhat.com/errata/RHSA-2018:2669Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2927Third Party Advisory
- https://github.com/bcgit/bc-java/commit/b0c3ce99d43d73a096268831d0d120ffc89eac7f#diff-3679f5a9d2b939d0d3ee1601a7774fb0Patch, Third Party Advisory
- https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3EThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00009.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231006-0011/Third Party Advisory
- https://usn.ubuntu.com/3727-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2020.htmlThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2669Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2927Third Party Advisory
- https://github.com/bcgit/bc-java/commit/b0c3ce99d43d73a096268831d0d120ffc89eac7f#diff-3679f5a9d2b939d0d3ee1601a7774fb0Patch, Third Party Advisory
- https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3EThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00009.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231006-0011/Third Party Advisory
- https://usn.ubuntu.com/3727-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2020.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.