CVSS Score of 10 (low)


Published Dec 8, 2023
Updated: Dec 13, 2023
CWE ID 667


CVE-2023-34320 is a vulnerability affecting Cortex-A77 cores (r0p0 and r1p0) due to the execution of certain software under specific circumstances. This vulnerability can potentially deadlock a core when there is a combination of 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. The vulnerability has a CVSS score of 5.5, indicating a medium severity level. There are 128 reported instances of this vulnerability. It affects numerous products, including those with codes cJ39PY, f3iFOP, f3iFOO, cJ39PZ, and many others. To remediate this vulnerability, it is recommended to apply relevant patches or updates provided by the product manufacturers. The potential danger posed to organizations is that an attacker could exploit this vulnerability to cause deadlock in affected cores, which could lead to system instability or denial-of-service situations.


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