Ubuntu Security Notice 4414-1 - It was discovered that the network block device implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service. It was discovered that the btrfs file system implementation in the Linux kernel did not properly validate file system metadata in some situations. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service. Various other issues were also addressed.
ec1a7baec52bd131ecb393a55700b5d470ac7a5dd70696941fbd4f55b47787c4Ubuntu Security Notice 4367-2 - USN-4367-1 fixed vulnerabilities in the 5.4 Linux kernel. Unfortunately, that update introduced a regression in overlayfs. This update corrects the problem. It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service. Various other issues were also addressed.
5e42002b4d2ecabf6a6cfa168d989279420dab6dbea6fcbbc0c07e9f5d7946b9Ubuntu Security Notice 4369-2 - USN-4369-1 fixed vulnerabilities in the 5.3 Linux kernel. Unfortunately, that update introduced a regression in overlayfs. This update corrects the problem. It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service. Various other issues were also addressed.
f8da9cd441c6d1901bb239518cb0e0af3d90d2be5c17ffa81da275fed60bf480Ubuntu Security Notice 4369-1 - It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service. Tristan Madani discovered that the file locking implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service or expose sensitive information. Various other issues were also addressed.
69def9b45df53fc4cdb7a3a8ed24f560a00649c84605fd7f555c6571945e7f41Ubuntu Security Notice 4367-1 - It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service. It was discovered that the linux kernel did not properly validate certain mount options to the tmpfs virtual memory file system. A local attacker with the ability to specify mount options could use this to cause a denial of service. Various other issues were also addressed.
321685a1adbdcccf734ad851c77e79c05483bf554e2914c4f09a4d1df26c8252Squiz Matrix CMS suffers from PHP unserialization code execution, information disclosure, and arbitrary file deletion vulnerabilities.
eb75c52a02dc3a4768ea4da3543e841dfcf37fa4316b8019e17e9c8ba9e0c386The Cisco UCS Director virtual appliance contains two flaws that can be combined and abused by an attacker to achieve remote code execution as root. The first one, CVE-2019-1937, is an authentication bypass, that allows the attacker to authenticate as an administrator. The second one, CVE-2019-1936, is a command injection in a password change form, that allows the attacker to inject commands that will execute as root. This module combines both vulnerabilities to achieve the unauthenticated command injection as root. It has been tested with Cisco UCS Director virtual machines 6.6.0 and 6.7.0. Note that Cisco also mentions in their advisory that their IMC Supervisor and UCS Director Express are also affected by these vulnerabilities, but this module was not tested with those products.
88e2661eac6ae7e8e4a10814c6417ce137ece9446d83413cd0c6813936fdb7e1Cisco UCS Director, Cisco Integrated Management Controller Supervisor and Cisco UCS Director Express for Big Data suffer from default password, authentication bypass, and command injection vulnerabilities.
38e7a01258bfec09b0882ac7dbf7cd123357ef8737f810d17b3e0ebf1d0c844e
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