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cveXENCVE-2023-34321
HistoryJan 05, 2024 - 5:15 p.m.

CVE-2023-34321

2024-01-0517:15:08
CWE-119
XEN
web.nvd.nist.gov
46
arm
cache
overflow
memory
nvd
cve-2023-34321

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

AI Score

5.4

Confidence

High

EPSS

0

Percentile

9.0%

Arm provides multiple helpers to clean & invalidate the cache
for a given region. This is, for instance, used when allocating
guest memory to ensure any writes (such as the ones during scrubbing)
have reached memory before handing over the page to a guest.

Unfortunately, the arithmetics in the helpers can overflow and would
then result to skip the cache cleaning/invalidation. Therefore there
is no guarantee when all the writes will reach the memory.

Affected configurations

Nvd
Node
xenxenRange4.16x86
VendorProductVersionCPE
xenxen*cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*

CNA Affected

[
  {
    "defaultStatus": "unknown",
    "product": "Xen",
    "vendor": "Xen",
    "versions": [
      {
        "status": "unknown",
        "version": "consult Xen advisory XSA-437"
      }
    ]
  }
]

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

AI Score

5.4

Confidence

High

EPSS

0

Percentile

9.0%