Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

  - CVE-2019-14821     Matt Delco reported a race condition in KVM's coalesced     MMIO facility, which could lead to out-of-bounds access     in the kernel. A local attacker permitted to access     /dev/kvm could use this to cause a denial of service     (memory corruption or crash) or possibly for privilege     escalation.

  - CVE-2019-14835     Peter Pi of Tencent Blade Team discovered a missing     bounds check in vhost_net, the network back-end driver     for KVM hosts, leading to a buffer overflow when the     host begins live migration of a VM. An attacker in     control of a VM could use this to cause a denial of     service (memory corruption or crash) or possibly for     privilege escalation on the host.

  - CVE-2019-15117     Hui Peng and Mathias Payer reported a missing bounds     check in the usb-audio driver's descriptor parsing code,     leading to a buffer over-read. An attacker able to add     USB devices could possibly use this to cause a denial of     service (crash).

  - CVE-2019-15118     Hui Peng and Mathias Payer reported unbounded recursion     in the usb-audio driver's descriptor parsing code,     leading to a stack overflow. An attacker able to add USB     devices could use this to cause a denial of service     (memory corruption or crash) or possibly for privilege     escalation. On the amd64 architecture, and on the arm64     architecture in buster, this is mitigated by a guard     page on the kernel stack, so that it is only possible to     cause a crash.

  - CVE-2019-15902     Brad Spengler reported that a backporting error     reintroduced a spectre-v1 vulnerability in the ptrace     subsystem in the ptrace_get_debugreg() function.

Detections

Analytics

Debian DSA-4531-1 : linux - security update

high Nessus Plugin ID 129306

Version 1.7

Version 1.6

Version 1.7 Apr 23, 2024, 2:11 PM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:POC/RL:OF/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:P/RL:O/RC:C") CVSSv3 score source (set to "CVE-2019-14821") Exploit attributes ("Exploit available" set to "True") Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202404231411
Version 1.6 Mar 27, 2024, 7:16 PM Detection (Debian kernel vulns will now be evaluated against the running kernel version instead of the highest installed version) Plugin Feed: 202403271916