CVE-2026-39314: Cups: güvenlik açığı

Açıklama (NVD)

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.

Özet bilgiler

Ürün

Openprinting Cups

CVSS v3.1

6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

%0,16 (yüzdelik 5)

CWE

CWE-191

Yama

Geçici çözüm

Etkilenen sürümler

Kaynaklar

• NVD kaydı
• github.com
• CWE-191