#dos

Ubuntu Security Notice 6688-1 - Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service. It was discovered that the Habana's AI Processors driver in the Linux kernel did not properly initialize certain data structures before passing them to user space. A local attacker could use this to expose sensitive information.

Ubuntu Security Notice 6681-2 - Wenqing Liu discovered that the f2fs file system implementation in the Linux kernel did not properly validate inode types while performing garbage collection. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service. It was discovered that the DesignWare USB3 for Qualcomm SoCs driver in the Linux kernel did not properly handle certain error conditions during device registration. A local attacker could possibly use this to cause a denial of service.

Ubuntu Security Notice 6658-2 - USN-6658-1 fixed a vulnerability in libxml2. This update provides the corresponding updates for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. It was discovered that libxml2 incorrectly handled certain XML documents. A remote attacker could possibly use this issue to cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary code.

Red Hat Security Advisory 2024-1244-03 - An update for rhc-worker-script is now available for Red Hat Enterprise Linux 7. Issues addressed include a denial of service vulnerability.

There exists a buffer overflow vulnerability in the TP-Link TL-WR740 router that can allow an attacker to crash the web server running on the router by sending a crafted request.

Debian Linux Security Advisory 5637-1 - Several security vulnerabilities have been discovered in Squid, a full featured web proxy cache. Due to programming errors in Squid's HTTP request parsing, remote attackers may be able to execute a denial of service attack by sending large X-Forwarded-For header or trigger a stack buffer overflow while performing HTTP Digest authentication. Other issues facilitate request smuggling past a firewall or a denial of service against Squid's Helper process management.

Ubuntu Security Notice 6680-2 - 黄思聪 discovered that the NFC Controller Interface implementation in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service. It was discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice 6686-1 - It was discovered that the DesignWare USB3 for Qualcomm SoCs driver in the Linux kernel did not properly handle certain error conditions during device registration. A local attacker could possibly use this to cause a denial of service. It was discovered that a race condition existed in the Cypress touchscreen driver in the Linux kernel during device removal, leading to a use-after- free vulnerability. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice 6685-1 - It was discovered that mqtt-client incorrectly handled memory while parsing malformed MQTT frames. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code.

Ubuntu Security Notice 6684-1 - It was discovered that ncurses incorrectly handled certain function return values, possibly leading to segmentation fault. A local attacker could possibly use this to cause a denial of service.