CVE-2018-16862

A security flaw was found in the Linux kernel in a way that the cleancache subsystem clears an inode after the final file truncation (removal). The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one.

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

5.5^/10

CVSS v3.0 : MEDIUM

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://seclists.org/oss-sec/2018/q4/169	Mailing List Third Party Advisory
https://lore.kernel.org/patchwork/patch/1011367/	Issue Tracking Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16862	Issue Tracking Third Party Advisory
http://www.securityfocus.com/bid/106009	Third Party Advisory VDB Entry
https://usn.ubuntu.com/3879-2/	Third Party Advisory
https://usn.ubuntu.com/3879-1/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4118-1/

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Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::

Configuration 4 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Information

Published : 2018-11-26 11:29

Updated : 2019-04-01 14:29

NVD link : CVE-2018-16862

Mitre link : CVE-2018-16862

JSON object : View

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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Products Affected

redhat

enterprise_linux

canonical

ubuntu_linux

debian

debian_linux

linux

linux_kernel

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