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cve/2020/CVE-2020-15852.md
marc 555e9c7de4 Update Sat May 25 21:48:12 CEST 2024
2024-05-25 21:48:12 +02:00

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CVE-2020-15852

Description

An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions of an unrelated task. This occurs because tss_invalidate_io_bitmap mishandling causes a loss of synchronization between the I/O bitmaps of TSS and Xen, aka CID-cadfad870154.

POC

Reference

No PoCs from references.

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