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ubuntucveUbuntu.comUB:CVE-2023-34320
HistoryDec 08, 2023 - 12:00 a.m.

CVE-2023-34320

2023-12-0800:00:00
ubuntu.com
ubuntu.com
19
cortex-a77
erratum 1508412
deadlock
load to device
non-cacheable memory
store exclusive
par_el1
hypervisor
universe-binary

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

28.9%

Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412 where
software, under certain circumstances, could deadlock a core due to the
execution of either a load to device or non-cacheable memory, and either a
store exclusive or register read of the Physical Address Register (PAR_EL1)
in close proximity.

Notes

Author Note
mdeslaur hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags_xen: universe-binary

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

28.9%