CVE-2016-8635
Published: 17 November 2016
It was found that Diffie Hellman Client key exchange handling in NSS 3.21.x was vulnerable to small subgroup confinement attack. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
nss Launchpad, Ubuntu, Debian |
upstream |
Released
(3.25)
|
| precise |
Released
(2:3.26.2-0ubuntu0.12.04.1)
|
|
| trusty |
Released
(2:3.26.2-0ubuntu0.14.04.3)
|
|
| xenial |
Released
(2:3.26.2-0ubuntu0.16.04.2)
|
|
| yakkety |
Not vulnerable
(2:3.26-1ubuntu1)
|
|
| zesty |
Not vulnerable
(2:3.26-1ubuntu1)
|
|
|
Patches: vendor: https://git.centos.org/blob/rpms!nss!/aada6b10b73091276397404059605d13e7548462/SOURCES!moz-1314604.patch upstream: https://hg.mozilla.org/projects/nss/rev/95bb47ef808b |
||
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 |