CVE-2016-1000341
Published: 4 June 2018
In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain information about the signature's k value and ultimately the private value as well.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
bouncycastle Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(1.57-1)
|
| bionic |
Not vulnerable
(1.59-1)
|
|
| cosmic |
Not vulnerable
(1.60-1)
|
|
| disco |
Not vulnerable
(1.60-1)
|
|
| eoan |
Not vulnerable
(1.60-1)
|
|
| focal |
Not vulnerable
(1.60-1)
|
|
| groovy |
Not vulnerable
(1.60-1)
|
|
| hirsute |
Not vulnerable
(1.60-1)
|
|
| impish |
Not vulnerable
(1.60-1)
|
|
| jammy |
Not vulnerable
(1.60-1)
|
|
| kinetic |
Not vulnerable
(1.60-1)
|
|
| lunar |
Not vulnerable
(1.60-1)
|
|
| mantic |
Not vulnerable
(1.60-1)
|
|
| trusty |
Released
(1.49+dfsg-2ubuntu0.1)
|
|
| upstream |
Released
(1.56-1)
|
|
| xenial |
Needed
|
|
|
Patches: upstream: https://github.com/bcgit/bc-java/commit/acaac81f96fec91ab45bd0412beaf9c3acd8defa |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.9 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |