Description
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:AAttack VectorAdjacent
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Red Hat Inc.
commercial·USaka redhat, red hat
Сообщество свободного программного обеспечения
oss-projectaka fsf
Canonical Ltd.
commercial·GBaka canonical
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
linux
oss-projectaka the linux kernel
debian
oss-project·GBaka debian gnu/linux
and 3 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.
MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
http://www.securityfocus.com/bid/106253
securityfocus.com
https://access.redhat.com/errata/RHSA-2019:1873
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:1891
access.redhat.com
and 61 more references View all →
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