It is unexpected and not allowed to call TTY buffer helpers like ttyinsertflipstring concurrently. This may lead to crashes when ECHOing is enabled and concurrect writers call ptywrite in the meantime. In that case the two writers: the ECHOing from a workqueue and ptywrite from the process race and can overflow the corresponding TTY buffer.
An unprivileged local user could use this flaw to crash the system or, potentially, escalate their privileges on the system.
References: http://seclists.org/oss-sec/2014/q2/243
Description of the problem:
A flaw was found in the way Linux kernel processed authenticated COOKIEECHO chunks.
A remote attacker could use this flaw to crash the system by sending a maliciously prepared SCTP handshake in order to trigger a NULL pointer dereference on the server.
Introduced by: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bbd0d59809f9
Acknowledgements:
Red Hat would like to thank Nokia Siemens Networks for reporting this issue.
Last updated 24 July 2024
Multiple SQL injection vulnerabilities in sam/admin/reports/php/saveSettings.php in the (1) APM WebGUI in F5 BIG-IP LTM, GTM, ASM, Link Controller, PSM, APM, Edge Gateway, and Analytics and (2) AVR WebGUI in WebAccelerator and WOM 11.2.x before 11.2.0-HF3 and 11.2.x before 11.2.1-HF3 allow remote authenticated users to execute arbitrary SQL commands via the defaultQuery parameter.
Cross-site scripting (XSS) vulnerability in tmui/dashboard/echo.jsp in the Configuration utility in F5 BIG-IP LTM, APM, ASM, GTM, and Link Controller 11.0.0 before 11.6.0 and 10.1.0 through 10.2.4, AAM 11.4.0 before 11.6.0, AFM and PEM 11.3.0 before 11.6.0, Analytics 11.0.0 through 11.5.1, Edge Gateway, WebAccelerator, and WOM 11.0.0 through 11.3.0 and 10.1.0 through 10.2.4, and PSM 11.0.0 through 11.4.1 and 10.1.0 through 10.2.4 and Enterprise Manager 3.0.0 through 3.1.1 and 2.1.0 through 2.3.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.