CVE-2020-15852

HIGH

7.8

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.

Details CVE

Score CVSS v3.17.8

SeveriteHIGH

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

Vecteur d'attaqueLOCAL

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie7/20/2020

Derniere modification11/21/2024

Sourcenvd

Observations honeypot0

Produits affectes

linux:linux_kernelnetapp:cloud_backupnetapp:solidfire_baseboard_management_controllernetapp:steelstore_cloud_integrated_storagexen:xen

Faiblesses (CWE)

CWE-276

References

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)

Correlations IOC

Aucune correlation enregistree

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