CVE-2020-14314

A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 2.1 LOW

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

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5872331b3d91820e14716632ebb56b1399b34fe1	Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14314	Issue Tracking Third Party Advisory
https://lore.kernel.org/linux-ext4/f53e246b-647c-64bb-16ec-135383c70ad7@redhat.com/T/#u	Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
https://usn.ubuntu.com/4576-1/
https://usn.ubuntu.com/4578-1/
https://usn.ubuntu.com/4579-1/
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.9.0:rc1::::::

Information

Published : 2020-09-15 20:15

Updated : 2020-11-02 21:15

NVD link : CVE-2020-14314

Mitre link : CVE-2020-14314

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-125

Out-of-bounds Read

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