USN-3696-1

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USN-3696-1

Summary: linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

Details: It was discovered that an integer overflow existed in the perf subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18255) Wei Fang discovered an integer overflow in the F2FS filesystem implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2017-18257) It was discovered that an information leak existed in the generic SCSI driver in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-1000204) It was discovered that the wait4() system call in the Linux kernel did not properly validate its arguments in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2018-10087) It was discovered that the kill() system call implementation in the Linux kernel did not properly validate its arguments in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2018-10124) Julian Stecklina and Thomas Prescher discovered that FPU register states (such as MMX, SSE, and AVX registers) which are lazily restored are potentially vulnerable to a side channel attack. A local attacker could use this to expose sensitive information. (CVE-2018-3665) Jakub Jirasek discovered that multiple use-after-free errors existed in the USB/IP implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-5814) It was discovered that an information leak vulnerability existed in the floppy driver in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-7755) Seunghun Han discovered an information leak in the ACPI handling code in the Linux kernel when handling early termination of ACPI table loading. A local attacker could use this to expose sensitive informal (kernel address locations). (CVE-2017-13695) It was discovered that a memory leak existed in the Serial Attached SCSI (SAS) implementation in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-10021)

References: https://ubuntu.com/security/notices/USN-3696-1, https://ubuntu.com/security/CVE-2017-13695, https://ubuntu.com/security/CVE-2017-18255, https://ubuntu.com/security/CVE-2017-18257, https://ubuntu.com/security/CVE-2018-3665, https://ubuntu.com/security/CVE-2018-5814, https://ubuntu.com/security/CVE-2018-7755, https://ubuntu.com/security/CVE-2018-10021, https://ubuntu.com/security/CVE-2018-10087, https://ubuntu.com/security/CVE-2018-10124, https://ubuntu.com/security/CVE-2018-1000204