MEDIUM🇵🇱 Wersja polska

CVE-2026-39314

CVSS 4.0v3.1pub. 2026-04-07upd. 2026-04-16

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

  • Openprinting Cups

    APP
    Openprinting
    ≤ 2.4.16
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CHECK WITH VENDOR
No clear patch data available. Check vendor references.
Tags
DoS
CWE
References

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