An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel\'s KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer \'struct kvm_coalesced_mmio\' object, wherein write indices \'ring->first\' and \'ring->last\' value could be supplied by a host user-space process. An unprivileged host user or process with access to \'/dev/kvm\' device could use this flaw to crash the host kernel, resulting in a denial of service or potentially escalating privileges on the system.
Find out more about CVE-2019-14821 from the MITRE-CVE dictionary and NIST NVD
Login may be required to access defects or downloads.
Product Name | Status | Defect | Fixed | Downloads |
---|---|---|---|---|
Linux | ||||
Wind River Linux LTS 17 | Fixed |
LIN10-6454 |
10.17.41.19 | -- |
Wind River Linux 8 | Fixed |
LIN8-11498 |
8.0.0.31 | -- |
Wind River Linux 9 | Fixed |
LIN9-9064 |
9.0.0.24 | -- |
Wind River Linux 7 | Fixed | -- | 7.0.0.31 | -- |
Wind River Linux LTS 21 | Not Vulnerable | -- | -- | -- |
Wind River Linux LTS 22 | Not Vulnerable | -- | -- | -- |
Wind River Linux LTS 18 | Fixed |
LIN1018-4954 |
10.18.44.12 | -- |
Wind River Linux LTS 19 | Not Vulnerable | -- | -- | -- |
Wind River Linux CD release | Not Vulnerable | -- | -- | -- |
Wind River Linux 6 | Requires LTSS | -- | -- | -- |
Wind River Linux LTS 23 | Not Vulnerable | -- | -- | -- |
VxWorks | ||||
VxWorks 7 | Not Vulnerable | -- | -- | -- |
VxWorks 6.9 | Not Vulnerable | -- | -- | -- |
Helix Virtualization Platform Cert Edition | ||||
Helix Virtualization Platform Cert Edition | Not Vulnerable | -- | -- | -- |
Product Name | Status | Defect | Fixed | Downloads |
---|