Description
Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:LAttack VectorLocal
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
netapp
commercial·US
Сообщество свободного программного обеспечения
oss-projectaka fsf
Linux
oss-projectaka the linux kernel
АО «НППКТ»
commercial·RU
and 3 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
https://xenbits.xenproject.org/xsa/advisory-374.txt
xenbits.xenproject.org
https://security.gentoo.org/glsa/202107-30
security.gentoo.org
https://security.netapp.com/advisory/ntap-20210805-0002/
security.netapp.com
and 15 more references View all →
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