Affected: Alpaquita:23: cups, Alpaquita:25: cups, Alpaquita:stream: cups

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.

Affected: openEuler:24.03-LTS: cups

CUPS is the standards-based, open source printing system developed by Apple Inc. for UNIX®-like operating systems. CUPS uses the Internet Printing Protocol (IPP) to support printing to local and network printers. Security Fix(es):

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.(CVE-2026-39314)

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a use-after-free vulnerability exists in the CUPS scheduler (cupsd) when temporary printers are automatically deleted. cupsdDeleteTemporaryPrinters() in scheduler/printers.c calls cupsdDeletePrinter() without first expiring subscriptions that reference the printer, leaving cupsd_subscription_t.dest as a dangling pointer to freed heap memory. The dangling pointer is subsequently dereferenced at multiple co…

cups-2.4.17-1.1 on GA media

cups: CUPS-Filters: Information disclosure and data corruption via crafted TIFF image file processing cups: Authentication Bypass in CUPS Authorization Handling cups: Null Pointer Dereference in CUPS ipp_read_io() Leading to Remote DoS cups: Slow client communication leads to a possible DoS attack cups: cups-filters: cups-filters: Out-of-bounds write via crafted PDF MediaBox cups: OpenPrinting CUPS: Authorization bypass via case-insensitive username comparison cups: OpenPrinting CUPS: Denial of Service via path traversal in RSS notifier cups: OpenPrinting CUPS: Denial of Service via heap-based buffer overflow in job attribute processing cups: OpenPrinting CUPS: Shared PostScript queue lets anonymous Print-Job requests reach `lp` code execution over the network cups: OpenPrinting CUPS: Privilege escalation via arbitrary file overwrite due to coerced authentication cups: CUPS: Denial of Service via integer underflow in IPP attribute handling cups: CUPS: Denial of Service and potential arbitrary code execution via use-after-free vulnerability when deleting temporary printers.

Security update for cups

Affected: Ubuntu:Pro:18.04:LTS: cups, Ubuntu:Pro:20.04:LTS: cups, Ubuntu:22.04:LTS: cups, Ubuntu:24.04:LTS: cups, Ubuntu:25.10: cups, Ubuntu:26.04:LTS: cups

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.

Ein Angreifer kann mehrere Schwachstellen in CUPS ausnutzen, um einen Denial of Service Angriff durchzuführen.