CVE-2018-16862

Description

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.02%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory kernel.org
Affected: [UNKNOWN] kernel:
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/106009 third party advisory vdb entry
https://usn.ubuntu.com/3879-2/ third party advisory vendor advisory
https://seclists.org/oss-sec/2018/q4/169 third party advisory mailing list
https://usn.ubuntu.com/3879-1/ third party advisory vendor advisory
https://lore.kernel.org/patchwork/patch/1011367/ patch vendor advisory issue tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16862 third party advisory issue tracking
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html mailing list
https://usn.ubuntu.com/4094-1/ vendor advisory
https://usn.ubuntu.com/4118-1/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-16862?
CVE-2018-16862 has been scored as a medium severity vulnerability.
How to fix CVE-2018-16862?
To fix CVE-2018-16862, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-16862 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-16862 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-16862?
CVE-2018-16862 affects [UNKNOWN] kernel:.
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