High severity · published Jul 2, 2021
CVE-2021-36148
An issue was discovered in ACRN before 2.5
7.8
CVSS
0.7%
EPSS
No
On KEV
Description
An issue was discovered in ACRN before 2.5. dmar_free_irte in hypervisor/arch/x86/vtd.c allows an irte_alloc_bitmap buffer overflow.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Acrn · Linux
before 2.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-36148
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-36148
Patch
https://github.com/projectacrn/acrn-hypervisor/commit/25c0e3817eb332660dd63d1d4522e63dcc94e79a
More from Acrn
7.5
CVE-2021-36147
An issue was discovered in ACRN before 2.5
7.5
CVE-2021-36146
ACRN before 2.5 has a devicemodel/hw/pci/xhci.c NULL Pointer Dereference for a trb pointer
7.5
CVE-2021-36145
The Device Model in ACRN through 2.5 has a devicemodel/core/mem.c use-after-free for a freed rb_entry
7.5
CVE-2021-36144
The polling timer handler in ACRN before 2.5 has a use-after-free for a freed virtio device, related to devicemodel/hw/pci/virtio/*.c
7.5
CVE-2021-36143
ACRN before 2.5 has a hw/pci/virtio/virtio.c vq_endchains NULL Pointer Dereference