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 Vulnerability   
Search   		     Search 324607 CVE descriptions
and 145615 test descriptions,
access 10,000+ cross references.
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CVE ID: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.
Test IDs: None available
Cross References: Common Vulnerability Exposure (CVE) ID: CVE-2020-15852
http://xenbits.xen.org/xsa/advisory-329.html
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cadfad870154e14f745ec845708bc17d166065f2
https://github.com/torvalds/linux/commit/cadfad870154e14f745ec845708bc17d166065f2
http://www.openwall.com/lists/oss-security/2020/07/21/2



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