#linux

Ubuntu Security Notice 6446-3 - Ross Lagerwall discovered that the Xen netback backend driver in the Linux kernel did not properly handle certain unusual packets from a paravirtualized network frontend, leading to a buffer overflow. An attacker in a guest VM could use this to cause a denial of service or possibly execute arbitrary code. Bien Pham discovered that the netfiler subsystem in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local user could use this to cause a denial of service or possibly execute arbitrary code.

Gentoo Linux Security Advisory 202310-16 - A vulnerability has been discovered in unifi where bundled log4j can facilitate a remote code execution Versions greater than or equal to 6.5.55 are affected.

Gentoo Linux Security Advisory 202310-15 - A vulnerability has been discovered in usbview where certain users can trigger a privilege escalation. Versions greater than or equal to 2.2 are affected.

Gentoo Linux Security Advisory 202310-14 - A vulnerability has been discovered in libinput where an attacker may run malicious code by exploiting a format string vulnerability. Versions greater than or equal to 1.20.1 are affected.

Debian Linux Security Advisory 5535-1 - Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, clickjacking, spoofing or information leaks.

Debian Linux Security Advisory 5534-1 - Jan-Niklas Sohn discovered several vulnerabilities in the Xorg X server, which may result in privilege escalation if the X server is running privileged.

The prolific threat actor known as Scattered Spider has been observed impersonating newly hired employees in targeted firms as a ploy to blend into normal on-hire processes and takeover accounts and breach organizations across the world. Microsoft, which disclosed the activities of the financially motivated hacking crew, described the adversary as "one of the most dangerous financial criminal

Sophisticated Windows and Linux malware for stealing data and conducting cyber espionage has flown under the radar, disguised as a cryptominer.

### Impact Triggering the office converter with a specially crafted file name allows writing the attachment's content to an attacker-controlled location on the server as long as the Java process has write access to that location. In particular in the combination with attachment moving, a feature introduced in XWiki 14.0, this is easy to reproduce but it also possible to reproduce in versions as old as XWiki 3.5 by uploading the attachment through the REST API which doesn't remove `/` or `\` from the filename. As the mime type of the attachment doesn't matter for the exploitation, this could e.g., be used to replace the `jar`-file of an extension which would allow executing arbitrary Java code and thus impact the confidentiality, integrity and availability of the XWiki installation. To reproduce the issue on versions since XWiki 14.0, execute the following steps: 1. Activate the office server 2. Upload an arbitrary file with the extension .doc, e.g., to your user profile (you can us...

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.