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CVE-2018-19045· NVD / CVE Program· CNA mitre

keepalived 2.0.8 used mode 0666 when creating new temporary files upon a call to PrintData or PrintStats, potentially leaking sensitive info

keepalived 2.0.8 used mode 0666 when creating new temporary files upon a call to PrintData or PrintStats, potentially leaking sensitive information.

HighCVSS 7.5 · v3.0—No exploit Fix available

Noroxi analysis

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Published
Nov 8, 2018
Updated
Jun 16, 2026
EPSS
2.4% · 83th percentile
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Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.4%

Affected systems

VendorProduct
keepalivedkeepalived

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • keepalived keepalived2.0.8

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12keepalivedbefore 1:2.0.10-11:2.0.10-1
openSUSE:Tumbleweedkeepalivedbefore 2.2.2-4.22.2.2-4.2
SUSE:Linux Enterprise High Availability Extension 15 SP1keepalivedbefore 2.0.19-3.3.12.0.19-3.3.1

Other highest-scoring records for the same primary product.

  • CVE-2018-19115keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impac
    40Plan
  • CVE-2021-44225In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination, allowing any user to inspect and manip
    21Monitor
  • CVE-2018-19046keepalived 2.0.8 didn't check for existing plain files when writing data to a temporary file upon a call to PrintData or PrintStats.
    18Monitor
  • CVE-2018-19044keepalived 2.0.8 didn't check for pathnames with symlinks when writing data to a temporary file upon a call to PrintData or PrintStats.
    18Monitor
  • CVE-2011-1784The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.
    14Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:keepalived1:2.0.10-1 · Debian:12Package registry (OSV)
opensuse:keepalived2.2.2-4.2 · openSUSE:TumbleweedPackage registry (OSV)
suse:keepalived2.0.19-3.3.1 · SUSE:Linux Enterprise High Availability Extension 15 SP1Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvd-primary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Change log

  1. Fix✗ → ✓

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References

All records