CVE-2020-15852

HIGH

7.8

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung7.8

SchweregradHIGH

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

AngriffsvektorLOCAL

KomplexitatLOW

Erforderliche PrivilegienLOW

BenutzerinteraktionNONE

Veroffentlicht7/20/2020

Zuletzt geandert11/21/2024

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

linux:linux_kernelnetapp:cloud_backupnetapp:solidfire_baseboard_management_controllernetapp:steelstore_cloud_integrated_storagexen:xen

Schwachen (CWE)

CWE-276

Referenzen

http://www.openwall.com/lists/oss-security/2020/07/21/2(cve@mitre.org)

http://xenbits.xen.org/xsa/advisory-329.html(cve@mitre.org)

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cadfad870154e14f745ec845708bc17d166065f2(cve@mitre.org)

https://github.com/torvalds/linux/commit/cadfad870154e14f745ec845708bc17d166065f2(cve@mitre.org)

https://security.netapp.com/advisory/ntap-20200810-0001/(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2020/07/21/2(af854a3a-2127-422b-91ae-364da2661108)

http://xenbits.xen.org/xsa/advisory-329.html(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cadfad870154e14f745ec845708bc17d166065f2(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/torvalds/linux/commit/cadfad870154e14f745ec845708bc17d166065f2(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20200810-0001/(af854a3a-2127-422b-91ae-364da2661108)

IOC Korrelationen

Keine Korrelationen erfasst

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