CVE-2020-14385

A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt. This can lead to the filesystem being shutdown, or otherwise rendered inaccessible until it is remounted, leading to a denial of service. The highest threat from this vulnerability is to system availability.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 4.7 MEDIUM

5.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.7^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.4 / Impact : 6.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f4020438fab05364018c91f7e02ebdd192085933	Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14385	Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html	Broken Link
https://usn.ubuntu.com/4576-1/	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel:5.9.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.9.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.9.0:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.9.0:-::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::

Information

Published : 2020-09-15 15:15

Updated : 2022-12-06 13:31

NVD link : CVE-2020-14385

Mitre link : CVE-2020-14385

JSON object : View

CWE

CWE-131

Incorrect Calculation of Buffer Size

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Products Affected

debian

debian_linux

canonical

ubuntu_linux

linux

linux_kernel

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