CVE-2016-9963 describes a medium-severity vulnerability in Exim versions prior to 4.87.1, where remote attackers could potentially extract the private DKIM signing key through manipulation of log files and bounce messages. This flaw, categorized as CWE-320 (Key Management Errors), affects various distributions including Canonical and Debian Linux, and their respective Exim packages. The attack requires high complexity but could lead to a high impact on confidentiality, allowing unauthorized access to sensitive cryptographic keys. Despite its potential impact, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.87CPE matchmatch criteria | cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* | ||
12.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* | ||
14.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | ||
16.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | ||
16.10CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:16.10:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
exim: Possible information disclosure to remote atacker
Dec 16, 2016Security Advisory for CVE-2016-9963
Security Advisory for CVE-2016-9963