Integer Underflow Affecting cups-debuginfo package, versions <1:2.4.16-1.amzn2023.0.3


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-AMZN2023-CUPSDEBUGINFO-16352263
  • published3 May 2026
  • disclosed7 Apr 2026

Introduced: 7 Apr 2026

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

How to fix?

Upgrade Amazon-Linux:2023 cups-debuginfo to version 1:2.4.16-1.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2026-1635.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cups-debuginfo package and not the cups-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 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