CVE-2018-16862
published 2018-11-26CVE-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…
PriorityP424medium5.5CVSS 3.0
AVLACLPRLUINSUCHINAN
EPSS
0.53%
44.6th percentile
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.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | linux | < linux 4.19.9-1 (bookworm) | linux 4.19.9-1 (bookworm) |
| linux | linux_kernel | <= 4.14 | — |
| linux | linux_kernel | >= 0 < 4.19.9-1 | 4.19.9-1 |
| linux | linux_kernel | >= 0 < 4.19.9-1 | 4.19.9-1 |
| linux | linux_kernel | >= 0 < 4.19.9-1 | 4.19.9-1 |
| linux | linux_kernel | >= 0 < 4.19.9-1 | 4.19.9-1 |
| linux | linux_kernel | >= 0 < 4.4.0-142.168 | 4.4.0-142.168 |
| linux | linux_kernel | >= 0 < 4.15.0-58.64 | 4.15.0-58.64 |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
osv5.5MEDIUM
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
vendor_ubuntu4.8MEDIUM
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Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2019-09-02·CVSS 3.3
CVE-2018-13053 [LOW] Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the alarmtimer implementation in the Linux kernel
contained an integer overflow vulnerability. A local attacker could use
this to cause a denial of service. (CVE-2018-13053)
Wen Xu discovered that the XFS filesystem implementation in the Linux
kernel did not properly track inode validations. An attacker could use this
to construct a malicious XFS image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13093)
Wen Xu discovered that the f2fs file system implementation in the Linux
kernel did not properly validate metadata. An attacker could use this to
construct a malicious f2fs image that, when mounted, could cause a denial
of serv
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2019-08-13·CVSS 3.3
CVE-2018-13053 [LOW] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the alarmtimer implementation in the Linux kernel
contained an integer overflow vulnerability. A local attacker could use
this to cause a denial of service. (CVE-2018-13053)
Wen Xu discovered that the XFS filesystem implementation in the Linux
kernel did not properly track inode validations. An attacker could use this
to construct a malicious XFS image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13093)
Wen Xu discovered that the f2fs file system implementation in the
Linux kernel did not properly validate metadata. An attacker could
use this to construct a malicious f2fs image that, when mounted,
could cause a denial of service (s
Ubuntu
Linux kernel (Xenial HWE) vulnerabilities
vendor_ubuntu·2019-02-04·CVSS 4.8
CVE-2018-10883 [MEDIUM] Linux kernel (Xenial HWE) vulnerabilities
Title: Linux kernel (Xenial HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
USN-3879-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu
14.04 LTS.
Wen Xu discovered that the ext4 file system implementation in the Linux
kernel could possibly perform an out of bounds write when updating the
journal for an inline file. An attacker could use this to construct a
malicious ext4 image that, when mounted, could cause a denial of service
(system crash). (CVE-2018-10883)
Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem
of the Linux kernel did not properly initialize new files in some
situatio
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2019-02-04·CVSS 4.8
CVE-2018-10883 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Wen Xu discovered that the ext4 file system implementation in the Linux
kernel could possibly perform an out of bounds write when updating the
journal for an inline file. An attacker could use this to construct a
malicious ext4 image that, when mounted, could cause a denial of service
(system crash). (CVE-2018-10883)
Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem
of the Linux kernel did not properly initialize new files in some
situations. A local attacker could use this to expose sensitive
information. (CVE-2018-16862)
Wei Wu discovered that the KVM implementation in the Linux kernel did not
properly ensure that ioapics were initialized. A local attacker co
Red Hat
kernel: cleancache: Infoleak of deleted files after reuse of old inodes
vendor_redhat·2018-11-24·CVSS 5.3
CVE-2018-16862 [MEDIUM] CWE-200 kernel: cleancache: Infoleak of deleted files after reuse of old inodes
kernel: cleancache: Infoleak of deleted files after reuse of old inodes
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.
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.
Package: kernel (Red Hat Enterprise Linux 5) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affe
Debian
CVE-2018-16862: linux - A security flaw was found in the Linux kernel in a way that the cleancache subsy...
vendor_debian·2018·CVSS 5.3
CVE-2018-16862 [MEDIUM] CVE-2018-16862: linux - A security flaw was found in the Linux kernel in a way that the cleancache subsy...
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.
Scope: local
bookworm: resolved (fixed in 4.19.9-1)
bullseye: resolved (fixed in 4.19.9-1)
forky: resolved (fixed in 4.19.9-1)
sid: resolved (fixed in 4.19.9-1)
trixie: resolved (fixed in 4.19.9-1)
GHSA
GHSA-8mfm-2wff-rgp2: 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)
ghsa_unreviewed·2022-05-14
CVE-2018-16862 [MEDIUM] CWE-200 GHSA-8mfm-2wff-rgp2: 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)
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.
OSV
linux-aws vulnerabilities
osv·2019-09-02·CVSS 3.3
CVE-2018-13053 [LOW] linux-aws vulnerabilities
linux-aws vulnerabilities
It was discovered that the alarmtimer implementation in the Linux kernel
contained an integer overflow vulnerability. A local attacker could use
this to cause a denial of service. (CVE-2018-13053)
Wen Xu discovered that the XFS filesystem implementation in the Linux
kernel did not properly track inode validations. An attacker could use this
to construct a malicious XFS image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13093)
Wen Xu discovered that the f2fs file system implementation in the Linux
kernel did not properly validate metadata. An attacker could use this to
construct a malicious f2fs image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13096, CVE-2018-13097, CVE-2018-13098,
CVE-2018-1309
OSV
linux, linux-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
osv·2019-08-13·CVSS 3.3
CVE-2018-13053 [LOW] linux, linux-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that the alarmtimer implementation in the Linux kernel
contained an integer overflow vulnerability. A local attacker could use
this to cause a denial of service. (CVE-2018-13053)
Wen Xu discovered that the XFS filesystem implementation in the Linux
kernel did not properly track inode validations. An attacker could use this
to construct a malicious XFS image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13093)
Wen Xu discovered that the f2fs file system implementation in the
Linux kernel did not properly validate metadata. An attacker could
use this to construct a malicious f2fs image that, when moun
OSV
linux-lts-xenial, linux-aws vulnerabilities
osv·2019-02-04·CVSS 5.5
[MEDIUM] linux-lts-xenial, linux-aws vulnerabilities
linux-lts-xenial, linux-aws vulnerabilities
USN-3879-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu
14.04 LTS.
Wen Xu discovered that the ext4 file system implementation in the Linux
kernel could possibly perform an out of bounds write when updating the
journal for an inline file. An attacker could use this to construct a
malicious ext4 image that, when mounted, could cause a denial of service
(system crash). (CVE-2018-10883)
Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem
of the Linux kernel did not properly initialize new files in some
situations. A local attacker could use this to expose sensitive
information. (C
OSV
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
osv·2019-02-04·CVSS 5.5
CVE-2018-10883 [MEDIUM] linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
Wen Xu discovered that the ext4 file system implementation in the Linux
kernel could possibly perform an out of bounds write when updating the
journal for an inline file. An attacker could use this to construct a
malicious ext4 image that, when mounted, could cause a denial of service
(system crash). (CVE-2018-10883)
Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem
of the Linux kernel did not properly initialize new files in some
situations. A local attacker could use this to expose sensitive
information. (CVE-2018-16862)
Wei Wu discovered that the KVM implementation in the Linux kernel did not
properly ensure that ioapics were initialized. A local attacker could use
this to cause a de
OSV
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)
osv·2018-11-26·CVSS 5.5
CVE-2018-16862 [MEDIUM] 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)
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-16862 kernel: cleancache: Infoleak of deleted files after reuse of old inodes [fedora-all]
bugzilla·2018-11-26·CVSS 5.3
CVE-2018-16862 [MEDIUM] CVE-2018-16862 kernel: cleancache: Infoleak of deleted files after reuse of old inodes [fedora-all]
CVE-2018-16862 kernel: cleancache: Infoleak of deleted files after reuse of old inodes [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multi
Bugzilla
CVE-2018-16862 kernel: cleancache: Infoleak of deleted files after reuse of old inodes
bugzilla·2018-11-12·CVSS 5.3
CVE-2018-16862 [MEDIUM] CVE-2018-16862 kernel: cleancache: Infoleak of deleted files after reuse of old inodes
CVE-2018-16862 kernel: cleancache: Infoleak of deleted files after reuse of old inodes
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 so the old file data instead of the new one.
References:
https://seclists.org/oss-sec/2018/q4/169
A suggested patch:
https://lore.kernel.org/patchwork/patch/1011367/
Discussion:
Acknowledgments:
Name: Vasily Averin (Virtuozzo Kernel Team), Pavel Tikhomirov (Virtuozzo Kernel Team)
---
Note:
While RHEL-ALT and RHEL-8 are vulnerable to this flaw, only Xen's [tmem] driver is a possible backend for the CleanCache subsystem. So, a vulnerable configuration is RHEL as a Xen
http://www.securityfocus.com/bid/106009https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16862https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlhttps://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlhttps://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlhttps://lore.kernel.org/patchwork/patch/1011367/https://seclists.org/oss-sec/2018/q4/169https://usn.ubuntu.com/3879-1/https://usn.ubuntu.com/3879-2/https://usn.ubuntu.com/4094-1/https://usn.ubuntu.com/4118-1/http://www.securityfocus.com/bid/106009https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16862https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlhttps://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlhttps://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlhttps://lore.kernel.org/patchwork/patch/1011367/https://seclists.org/oss-sec/2018/q4/169https://usn.ubuntu.com/3879-1/https://usn.ubuntu.com/3879-2/https://usn.ubuntu.com/4094-1/https://usn.ubuntu.com/4118-1/
2018-11-26
Published