CVE-2026-39314

Katalog CVE

CVSS 6.2 · Medium EPSS 0,16%

Kerentanan Integer Underflow (Wrap or Wraparound) pada openprinting cups. Skor CVSS 3.1 6.2 (Medium) menurut NVD.

Deskripsi (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.

Rincian

Terbit di NVD

7 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

6.2 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-191: Integer Underflow (Wrap or Wraparound)

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/OpenPrinting/cups/security/advisories/GHSA-pp8w-2g52-7vj7 exploit · mitigasi · advisory vendor