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SUSE-SU-2026:2718-1

Опубликовано: 01 июл. 2026
Источник: suse-cvrf

Описание

Security update for cups

This update for cups fixes the following issues

  • CVE-2026-27447: Authorization bypass via case-insensitive group-member lookup (bsc#1261572).
  • CVE-2026-34978: Path traversal in RSS notify-recipient-uri enables file write outside CacheDir/rss (bsc#1261571).
  • CVE-2026-34979: Heap overflow in get_options() (bsc#1261570).
  • CVE-2026-34980: Shared PostScript queue lets anonymous Print-Job requests reach lp code execution over the network (bsc#1261569).
  • CVE-2026-39316: dangling subscription pointer can lead to a denial of service (bsc#1261742).

Список пакетов

SUSE Linux Enterprise Server LTSS Extended Security 12 SP5
cups-1.7.5-20.67.1
cups-client-1.7.5-20.67.1
cups-devel-1.7.5-20.67.1
cups-libs-1.7.5-20.67.1
cups-libs-32bit-1.7.5-20.67.1

Ссылки

Описание

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, CUPS daemon (cupsd) contains an authorization bypass vulnerability due to case-insensitive username comparison during authorization checks. The vulnerability allows an unprivileged user to gain unauthorized access to restricted operations by using a user with a username that differs only in case from an authorized user. At time of publication, there are no publicly available patches.

Затронутые продукты
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-client-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-devel-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-libs-1.7.5-20.67.1
Ссылки

Описание

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, the RSS notifier allows .. path traversal in notify-recipient-uri (e.g., rss:///../job.cache), letting a remote IPP client write RSS XML bytes outside CacheDir/rss (anywhere that is lp-writable). In particular, because CacheDir is group-writable by default (typically root:lp and mode 0770), the notifier (running as lp) can replace root-managed state files via temp-file + rename(). This PoC clobbers CacheDir/job.cache with RSS XML, and after restarting cupsd the scheduler fails to parse the job cache and previously queued jobs disappear. At time of publication, there are no publicly available patches.

Затронутые продукты
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-client-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-devel-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-libs-1.7.5-20.67.1
Ссылки

Описание

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, there is a heap-based buffer overflow in the CUPS scheduler when building filter option strings from job attribute. At time of publication, there are no publicly available patches.

Затронутые продукты
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-client-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-devel-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-libs-1.7.5-20.67.1
Ссылки

Описание

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a network-exposed cupsd with a shared target queue, an unauthorized client can send a Print-Job to that shared PostScript queue without authentication. The server accepts a page-border value supplied as textWithoutLanguage, preserves an embedded newline through option escaping and reparse, and then reparses the resulting second-line PPD: text as a trusted scheduler control record. A follow-up raw print job can therefore make the server execute an attacker-chosen existing binary such as /usr/bin/vim as lp. At time of publication, there are no publicly available patches.

Затронутые продукты
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-client-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-devel-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-libs-1.7.5-20.67.1
Ссылки

Описание

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.

Затронутые продукты
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-client-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-devel-1.7.5-20.67.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cups-libs-1.7.5-20.67.1
Ссылки