CVE-2019-19770

** DISPUTED ** In the Linux kernel 4.19.83, there is a use-after-free (read) in the debugfs_remove function in fs/debugfs/inode.c (which is used to remove a file or directory in debugfs that was previously created with a call to another debugfs function such as debugfs_create_file). NOTE: Linux kernel developers dispute this issue as not being an issue with debugfs, instead this is an issue with misuse of debugfs within blktrace.

CVSS v3.0 8.2 HIGH
CVSS v2.0 6.4 MEDIUM

8.2^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.4^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:P

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.kernel.org/show_bug.cgi?id=205713	Exploit Issue Tracking Vendor Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/	Third Party Advisory
https://lore.kernel.org/linux-block/20200402000002.7442-1-mcgrof@kernel.org/
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2019-12-12 12:15

Updated : 2020-12-10 16:15

NVD link : CVE-2019-19770

Mitre link : CVE-2019-19770

JSON object : View

CWE

CWE-416

Use After Free

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Products Affected

linux

linux_kernel

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