Description
An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:LAttack VectorLocal
AC:HAttack ComplexityHigh
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:LConfidentialityLow
I:LIntegrityLow
A:NAvailabilityNone
Weaknesses
Affected Products
netapp
commercial·US
linux
oss-projectaka the linux kernel
debian
oss-project·GBaka debian gnu/linux
ООО "Открытая мобильная платформа"
commercial·RU
Сообщество свободного программного обеспечения
oss-projectaka fsf
and 1 more affected products View all →
Exploitability
2 exploit sources identified
Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.
View exploit details Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
3 techniques Initial Access
Privilege Escalation
References
http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
packetstormsecurity.com
https://bugs.chromium.org/p/project-zero/issues/detail?id=2045
bugs.chromium.org
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3
cdn.kernel.org
and 34 more references View all →
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