Vulnerability Details : CVE-2016-1000339
In the Bouncy Castle JCE Provider version 1.55 and earlier the primary engine class used for AES was AESFastEngine. Due to the highly table driven approach used in the algorithm it turns out that if the data channel on the CPU can be monitored the lookup table accesses are sufficient to leak information on the AES key being used. There was also a leak in AESEngine although it was substantially less. AESEngine has been modified to remove any signs of leakage (testing carried out on Intel X86-64) and is now the primary AES class for the BC JCE provider from 1.56. Use of AESFastEngine is now only recommended where otherwise deemed appropriate.
Products affected by CVE-2016-1000339
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- Bouncycastle » Legion-of-the-bouncy-castle-java-crytography-apiVersions up to, including, (<=) 1.55cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-java-crytography-api:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-1000339
0.28%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-1000339
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
5.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2016-1000339
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-1000339
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https://www.oracle.com/security-alerts/cpuoct2020.html
Oracle Critical Patch Update Advisory - October 2020
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https://usn.ubuntu.com/3727-1/
USN-3727-1: Bouncy Castle vulnerabilities | Ubuntu security notices
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https://github.com/bcgit/bc-java/commit/8a73f08931450c17c749af067b6a8185abdfd2c0#diff-494fb066bed02aeb76b6c005632943f2
Added table use obfuscation to AESFastEngine · bcgit/bc-java@8a73f08 · GitHubPatch;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2018:2927
RHSA-2018:2927 - Security Advisory - Red Hat Customer Portal
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https://security.netapp.com/advisory/ntap-20181127-0004/
June 2018 Bouncy Castle Vulnerabilities in NetApp Products | NetApp Product Security
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https://access.redhat.com/errata/RHSA-2018:2669
RHSA-2018:2669 - Security Advisory - Red Hat Customer Portal
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https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html
[SECURITY] [DLA 1418-1] bouncycastle security updateThird Party Advisory
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https://github.com/bcgit/bc-java/commit/413b42f4d770456508585c830cfcde95f9b0e93b#diff-54656f860db94b867ba7542430cd2ef0
added better support for DH domain parameters · bcgit/bc-java@413b42f · GitHubPatch;Third Party Advisory
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