CVE-2015-3243

rsyslog uses weak permissions for generating log files, which allows local users to obtain sensitive information by reading files in /var/log/cron.

Published: 2017-07-25 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-3243 is rated Low Risk (28.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.07%). 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-2015-3243

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 2025-03-17 0.04% 0.07% +0.02%
2 2023-03-07 0.95% 0.04% -0.91%
3 2022-02-04 — 0.95% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-3243

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:H/I:N/A:N 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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N 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:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2015-3243

OS Trackers for CVE-2015-3243

vendor priority summary link
debian unimportant CVE-2015-3243 unimportant priority: Debian including 1 source packages (rsyslog), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. https://security-tracker.debian.org/tracker/CVE-2015-3243
redhat low — https://access.redhat.com/security/cve/CVE-2015-3243
suse medium CVE-2015-3243 severity moderate: SUSE including 379 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 489 product×package rows across 43 product lines (Container caasp/v4/haproxy, Image SLES12-SP5-OCI-BYOS-BYOS, … (43 product lines)): Fixed 256, Known Affected 157, Known Not Affected 76. https://www.suse.com/security/cve/CVE-2015-3243/
ubuntu medium CVE-2015-3243 medium priority: Ubuntu including 1 source packages (rsyslog), 5 status rows across 5 suites (precise, trusty, upstream, utopic, vivid): not-affected 4, needs-triage 1. https://ubuntu.com/security/CVE-2015-3243

Affected software / configurations for CVE-2015-3243

Vendor Product Version Raw CPE
rsyslog rsyslog — cpe:2.3:a:rsyslog:rsyslog:-:*:*:*:*:*:*:*

References for CVE-2015-3243

URL Tags
http://www.openwall.com/lists/oss-security/2015/06/18/12 Mailing List VDB Entry
http://www.openwall.com/lists/oss-security/2015/06/20/3 Mailing List VDB Entry
http://www.securityfocus.com/bid/75298 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1032885 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1232826 Issue Tracking Third Party Advisory VDB Entry
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