Detections
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Echo: cups: security update to 2.4.18-1

medium Tenable Self-Hosted Container Security Plugin ID 459817

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In
 versions 2.4.16 and prior, an integer underflow vulnerability in _ppdCreateFromIPP() (cups/ppd-cache.c)
 allows any unprivileged local user to crash the cupsd root process by supplying a negative job-password-
 supported IPP attribute. The bounds check only caps the upper bound, so a negative value passes
 validation, is cast to size_t (wrapping to ~2^64), and is used as the length argument to memset() on a
 33-byte stack buffer. This causes an immediate SIGSEGV in the cupsd root process. Combined with systemd's
 Restart=on-failure, an attacker can repeat the crash for sustained denial of service. (CVE-2026-39314)

Solution

Update the cups library and its related packages to version 2.4.18-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-39314

Plugin Details

Severity: Medium

ID: 459817

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-39314

CVSS v3

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 5.6

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/8/2026

Vulnerability Publication Date: 4/7/2026

Reference Information

CVE: CVE-2026-39314