CVE-2016-9963

Publication date 16 December 2016

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

Description

Exim before 4.87.1 might allow remote attackers to obtain the private DKIM signing key via vectors related to log files and bounce messages.

Status

Package Ubuntu Release Status
exim4 16.10 yakkety
Fixed 4.87-3ubuntu1.1
16.04 LTS xenial
Fixed 4.86.2-2ubuntu2.1
14.04 LTS trusty
Fixed 4.82-3ubuntu2.2
12.04 LTS precise
Fixed 4.76-3ubuntu3.4

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
exim4

Severity score breakdown

Parameter Value
Base score 5.9 · Medium
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

References

Related Ubuntu Security Notices (USN)

Other references