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, 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 code sites, causing a crash (denial of service) of the cupsd daemon. With heap grooming, this can be leveraged for code execution.

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:16.04:LTS: cups, 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, 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 code sites, causing a crash (denial of service) of the cupsd daemon. With heap grooming, this can be leveraged for code execution.

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