Описание
Security update for cups
This update for cups fixes the following issues:
- CVE-2023-34241: Fixed a use-after-free problem in cupsdAcceptClient() (bsc#1212230).
Список пакетов
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SUSE Enterprise Storage 7
SUSE Enterprise Storage 7.1
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS
SUSE Linux Enterprise Micro 5.2
SUSE Linux Enterprise Micro 5.3
SUSE Linux Enterprise Micro 5.4
SUSE Linux Enterprise Module for Basesystem 15 SP4
SUSE Linux Enterprise Module for Basesystem 15 SP5
SUSE Linux Enterprise Module for Desktop Applications 15 SP5
SUSE Linux Enterprise Module for Development Tools 15 SP4
SUSE Linux Enterprise Module for Development Tools 15 SP5
SUSE Linux Enterprise Real Time 15 SP3
SUSE Linux Enterprise Server 15 SP1-LTSS
SUSE Linux Enterprise Server 15 SP2-LTSS
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SUSE Linux Enterprise Server for SAP Applications 15 SP1
SUSE Linux Enterprise Server for SAP Applications 15 SP2
SUSE Linux Enterprise Server for SAP Applications 15 SP3
SUSE Manager Proxy 4.2
SUSE Manager Server 4.2
openSUSE Leap 15.4
openSUSE Leap 15.5
openSUSE Leap Micro 5.3
Ссылки
- Link for SUSE-SU-2023:2616-1
- E-Mail link for SUSE-SU-2023:2616-1
- SUSE Security Ratings
- SUSE Bug 1212230
- SUSE CVE CVE-2023-34241 page
Описание
OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to the logging service AFTER the connection has been closed, when it should have logged the data right before. This is a use-after-free bug that impacts the entire cupsd process. The exact cause of this issue is the function `httpClose(con->http)` being called in `scheduler/client.c`. The problem is that httpClose always, provided its argument is not null, frees the pointer at the end of the call, only for cupsdLogClient to pass the pointer to httpGetHostname. This issue happens in function `cupsdAcceptClient` if LogLevel is warn or higher and in two scenarios: there is a double-lookup for the IP Address (HostNameLookups Double is set in `cupsd.conf`) which fails to resolve, or if CUPS is compiled with TCP wrappers and the connection is refused by rules from `/etc/hosts.allow` and `/etc/hosts.deny`. Version 2.4.6 has a patch for this issue.
Затронутые продукты
Ссылки
- CVE-2023-34241
- SUSE Bug 1212230
- SUSE Bug 1217457
- SUSE Bug 1218317