Description
In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:LAttack VectorLocal
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:RUser InteractionRequired
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
netapp
commercial·US
linux
oss-projectaka the linux kernel
debian
oss-project·GBaka debian gnu/linux
canonical
commercial·GBaka canonical ltd.
АО «ИВК»
commercial·RUaka ivk
Сообщество свободного программного обеспечения
oss-projectaka fsf
and 9 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
2 techniques Initial Access
Privilege Escalation
References
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448
github.com
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
lists.debian.org
and 18 more references View all →
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