kernel: Use-after-free in the vmacache_flush_all function resulting in a possible privilege escalation

An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.

An issue was discovered in OpenEMR before 5.0.1 Patch 7. SQL Injection exists in the SaveAudit function in /portal/lib/paylib.php and the portalAudit function in /portal/lib/appsql.class.php.

An issue was discovered in OpenEMR before 5.0.1 Patch 7. Directory Traversal exists via docid=../ to /portal/lib/download_template.php.

An issue was discovered in OpenEMR before 5.0.1 Patch 7. There is SQL Injection in the make_task function in /interface/forms/eye_mag/php/taskman_functions.php via /interface/forms/eye_mag/taskman.php.

An issue was discovered on Neato Botvac Connected 2.2.0 devices. They execute unauthenticated manual drive commands (sent to /bin/webserver on port 8081) if they already have an active session. Commands like forward, back, arc-left, arc-right, pivot-left, and pivot-right are executed even though the web socket replies with { "message" : "invalid authorization header" }. Without an active session, commands are still interpreted, but (except for eco-on and eco-off) have no effect, since without active driving, a driving direction does not change anything.

An issue was discovered on Neato Botvac Connected 2.2.0 and Botvac 85 1.2.1 devices. Static encryption is used for the copying of so-called "black box" logs (event logs and core dumps) to a USB stick. These logs are RC4-encrypted with a 9-character password of *^JEd4W!I that is obfuscated by hiding it within a custom /bin/rc4_crypt binary.

A replay issue was discovered on Neato Botvac Connected 2.2.0 devices. Manual control mode requires authentication, but once recorded, the authentication (always transmitted in cleartext) can be replayed to /bin/webserver on port 8081. There are no nonces, and timestamps are not checked at all.

In the marshmallow library before 2.15.1 and 3.x before 3.0.0b9 for Python, the schema "only" option treats an empty list as implying no "only" option, which allows a request that was intended to expose no fields to instead expose all fields (if the schema is being filtered dynamically using the "only" option, and there is a user role that produces an empty value for "only").

A stack-based buffer overflow was discovered in the xtimor NMEA library (aka nmealib) 0.5.3. nmea_parse() in parser.c allows an attacker to trigger denial of service (even arbitrary code execution in a certain context) in a product using this library via malformed data.

LG SuperSign CMS allows remote attackers to execute arbitrary code via the sourceUri parameter to qsr_server/device/getThumbnail.

The web application on Xerox AltaLink B80xx before 100.008.028.05200, C8030/C8035 before 100.001.028.05200, C8045/C8055 before 100.002.028.05200, and C8070 before 100.003.028.05200 allows unauthenticated command injection.

Grouptime Teamwire Desktop Client 1.5.1 prior to 1.9.0 on Windows allows code injection via a template, leading to remote code execution. All backend versions prior to prod-2018-11-13-15-00-42 are affected.

An XML external entity (XXE) vulnerability in PrinterOn version 4.1.4 and lower allows remote authenticated users to read arbitrary files or conduct server-side request forgery (SSRF) attacks via a crafted DTD in an XML request.

PrinterOn Enterprise 4.1.4 contains multiple Cross Site Request Forgery (CSRF) vulnerabilities in the Administration page. For example, an administrator, by following a link, can be tricked into making unwanted changes to a printer (Disable, Approve, etc).

PrinterOn Enterprise 4.1.4 suffers from multiple authenticated stored XSS vulnerabilities via the (1) "Machine Host Name" or "Server Serial Number" field in the clustering configuration, (2) "name" field in the Edit Group configuration, (3) "Rule Name" field in the Access Control configuration, (4) "Service Name" in the Service Configuration, or (5) First Name or Last Name field in the Edit Account configuration.

In FreeBSD before 11.2-STABLE(r348229), 11.2-RELEASE-p7, 12.0-STABLE(r342228), and 12.0-RELEASE-p1, insufficient validation of network-provided data in bootpd may make it possible for a malicious attacker to craft a bootp packet which could cause a stack buffer overflow. It is possible that the buffer overflow could lead to a Denial of Service or remote code execution.

In FreeBSD before 11.2-STABLE(r341486) and 11.2-RELEASE-p6, insufficient bounds checking in one of the device models provided by bhyve can permit a guest operating system to overwrite memory in the bhyve host possibly permitting arbitrary code execution. A guest OS using a firmware image can cause the bhyve process to crash, or possibly execute arbitrary code on the host as root.

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation.

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error can occur when handling the client address length field in an NFSv4 request. Unprivileged remote users with access to the NFS server can crash the system by sending a specially crafted NFSv4 request.

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error when handling opcodes can cause memory corruption by sending a specially crafted NFSv4 request. Unprivileged remote users with access to the NFS server may be able to execute arbitrary code.