Integer Underflow Affecting cups-client package, versions <2.2.7-150000.3.93.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.15% (5th percentile)

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  • Snyk IDSNYK-SLES157-CUPSCLIENT-17816491
  • published4 Jul 2026
  • disclosed2 Jul 2026

Introduced: 2 Jul 2026

NewCVE-2026-39314  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 cups-client to version 2.2.7-150000.3.93.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cups-client package and not the cups-client package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1