CVE-2017-18226

The Gentoo net-im/jabberd2 package through 2.6.1 sets the ownership of /var/run/jabber to the jabber account, which might allow local users to kill arbitrary processes by leveraging access to this account for PID file modification before a root script executes a "kill -TERM `cat /var/run/jabber/filename.pid`" command.

Published: 2018-03-12 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-18226 is rated Low Risk (31.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.10%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-18226

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-30 0.04% 0.10% +0.06%
2 2023-03-07 0.89% 0.04% -0.84%
3 2022-02-04 — 0.89% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-18226

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2017-18226

OS Trackers for CVE-2017-18226

vendor priority summary link
debian low CVE-2017-18226 low priority: Debian including 1 source packages (jabberd2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. https://security-tracker.debian.org/tracker/CVE-2017-18226
gentoo high CVE-2017-18226: 1 GLSA(s) (201803-07), 1 atom(s) (net-im/jabberd2); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-18226
redhat low — https://access.redhat.com/security/cve/CVE-2017-18226
ubuntu medium CVE-2017-18226 medium priority: Ubuntu including 1 source packages (jabberd2), 5 status rows across 5 suites (bionic, focal, trusty, upstream, xenial): not-affected 3, DNE 1, needs-triage 1. https://ubuntu.com/security/CVE-2017-18226

Affected software / configurations for CVE-2017-18226

Vendor Product Version Raw CPE
jabberd2 jabberd2 <= 2.6.1 cpe:2.3:a:jabberd2:jabberd2:*:*:*:*:*:*:*:*

References for CVE-2017-18226

URL Tags
https://bugs.gentoo.org/631068 Issue Tracking Third Party Advisory
cvelogic Threat Intelligence