#linux

A flaw possibility of memory leak in the Linux kernel cpu_entry_area mapping of X86 CPU data to memory was found in the way user can guess location of exception stack(s) or other important data. A local user could use this flaw to get access to some important data with expected location in memory.

CloudNativeSecurityCon North America 2023 was a vendor-neutral cloud-native security conference. Here's why it was important.

Froxlor versions 2.0.6 and below suffer from a bug that allows authenticated users to change the application logs path to any directory on the OS level which the user www-data can write without restrictions from the backend which leads to writing a malicious Twig template that the application will render. That leads to remote command execution under the user www-data.

Ubuntu Security Notice 5884-1 - Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. Lee Jones discovered that a use-after-free vulnerability existed in the Bluetooth implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Debian Linux Security Advisory 5358-1 - Multiple security vulnerabilities have been discovered in Asterisk, an Open Source Private Branch Exchange. Buffer overflows and other programming errors could be exploited for launching a denial of service attack or the execution of arbitrary code.

Debian Linux Security Advisory 5357-1 - yvvdwf found a data exfiltration vulnerability while performing local clone from malicious repository even using a non-local transport. Joern Schneeweisz found a path traversal vulnerability in git-apply that a path outside the working tree can be overwritten as the acting user.

Ubuntu Security Notice 5883-1 - Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that an out-of-bounds write vulnerability existed in the Video for Linux 2 implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Red Hat Security Advisory 2023-0902-01 - WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform. Issues addressed include a code execution vulnerability.

Red Hat Security Advisory 2023-0903-01 - WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform. Issues addressed include a code execution vulnerability.

ThingsBoard 3.4.1 could allow a remote attacker to gain elevated privileges because hard-coded service credentials (usable for privilege escalation) are stored in an insecure format. (To read this stored data, the attacker needs access to the application server or its source code.)