CVE-2017-18249
published 2018-03-26CVE-2017-18249: The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a…
PriorityP425high7CVSS 3.0
AVLACHPRLUINSUCHIHAH
EPSS
0.31%
23.6th percentile
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 4.12.6-1 (bookworm) | linux 4.12.6-1 (bookworm) |
| android | — | — | |
| linux | linux_kernel | < 4.12 | 4.12 |
| linux | linux_kernel | >= 0 < 4.12.6-1 | 4.12.6-1 |
| linux | linux_kernel | >= 0 < 4.12.6-1 | 4.12.6-1 |
| linux | linux_kernel | >= 0 < 4.12.6-1 | 4.12.6-1 |
| linux | linux_kernel | >= 0 < 4.12.6-1 | 4.12.6-1 |
| linux | linux_kernel | >= 0 < 4.4.0-145.171 | 4.4.0-145.171 |
CVSS provenance
nvdv3.07.0HIGHCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.4MEDIUMAV:L/AC:M/Au:N/C:P/I:P/A:P
osv7.0HIGH
vendor_debian7.0HIGH
vendor_redhat7.0HIGH
vendor_ubuntu7.0HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-3g3f-97cc-fc4h: The add_free_nid function in fs/f2fs/node
ghsa_unreviewed·2022-05-14
CVE-2017-18249 [HIGH] CWE-362 GHSA-3g3f-97cc-fc4h: The add_free_nid function in fs/f2fs/node
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.
OSV
linux-lts-xenial, linux-aws vulnerabilities
osv·2019-04-02·CVSS 7.0
CVE-2017-18249 [HIGH] linux-lts-xenial, linux-aws vulnerabilities
linux-lts-xenial, linux-aws vulnerabilities
USN-3932-1 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.
It was discovered that a race condition existed in the f2fs file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service. (CVE-2017-18249)
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-2018-13097, CVE-2018-13099, CVE-2018-13100,
CVE-2018-14614, CVE-2018-14616)
Wen Xu and Po-Ning Tseng
OSV
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
osv·2019-04-02·CVSS 7.0
CVE-2017-18249 [HIGH] linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that a race condition existed in the f2fs file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service. (CVE-2017-18249)
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-2018-13097, CVE-2018-13099, CVE-2018-13100,
CVE-2018-14614, CVE-2018-14616)
Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation
in the Linux kernel did not properly validate metadata. An attacker could
use this to construct a malicious btrfs image that, when mo
OSV
CVE-2017-18249: The add_free_nid function in fs/f2fs/node
osv·2018-03-26·CVSS 7.0
CVE-2017-18249 [HIGH] CVE-2017-18249: The add_free_nid function in fs/f2fs/node
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2019-04-02·CVSS 7.0
CVE-2017-18249 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that a race condition existed in the f2fs file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service. (CVE-2017-18249)
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-2018-13097, CVE-2018-13099, CVE-2018-13100,
CVE-2018-14614, CVE-2018-14616)
Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation
in the Linux kernel did not properly validate metadata. An attacker could
use this to construct a malicious
Ubuntu
Linux kernel (Xenial HWE) vulnerabilities
vendor_ubuntu·2019-04-02·CVSS 7.0
CVE-2017-18249 [HIGH] Linux kernel (Xenial HWE) vulnerabilities
Title: Linux kernel (Xenial HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
USN-3932-1 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.
It was discovered that a race condition existed in the f2fs file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service. (CVE-2017-18249)
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-2018-13097, CVE-2018-13099, CVE
Android
CVE-2017-18249: F2FS
vendor_android·2018-08-01·CVSS 7.0
CVE-2017-18249 [HIGH] CVE-2017-18249: F2FS
Android Security Bulletin 2018-08-01
CVE: CVE-2017-18249
Severity: HIGH
Type: EoP
Component: F2FS
References: A-78283212
Upstream kernel
Red Hat
kernel: Race condition in fs/f2fs/node.c:add_free_nid() function allows local users to cause denial of service
vendor_redhat·2017-03-22·CVSS 7.0
CVE-2017-18249 [HIGH] CWE-362 kernel: Race condition in fs/f2fs/node.c:add_free_nid() function allows local users to cause denial of service
kernel: Race condition in fs/f2fs/node.c:add_free_nid() function allows local users to cause denial of service
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.
The add_free_nid function in fs/f2fs/node.c in the Linux kernel, before 4.12, does not properly track an allocated nid. This allows local users to cause a denial of service (race condition) or possibly have unspecified other impacts via concurrent threads.
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 a
Debian
CVE-2017-18249: linux - The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does...
vendor_debian·2017·CVSS 7.0
CVE-2017-18249 [HIGH] CVE-2017-18249: linux - The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does...
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.
Scope: local
bookworm: resolved (fixed in 4.12.6-1)
bullseye: resolved (fixed in 4.12.6-1)
forky: resolved (fixed in 4.12.6-1)
sid: resolved (fixed in 4.12.6-1)
trixie: resolved (fixed in 4.12.6-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-18249 kernel: Race condition in fs/f2fs/node.c:add_free_nid() function allows local users to cause denial of service [fedora-all]
bugzilla·2018-04-04·CVSS 7.0
CVE-2017-18249 [HIGH] CVE-2017-18249 kernel: Race condition in fs/f2fs/node.c:add_free_nid() function allows local users to cause denial of service [fedora-all]
CVE-2017-18249 kernel: Race condition in fs/f2fs/node.c:add_free_nid() function allows local users to cause denial of service [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 m
Bugzilla
CVE-2017-18249 kernel: Race condition in fs/f2fs/node.c:add_free_nid() function allows local users to cause denial of service
bugzilla·2018-03-27·CVSS 7.0
CVE-2017-18249 [HIGH] CVE-2017-18249 kernel: Race condition in fs/f2fs/node.c:add_free_nid() function allows local users to cause denial of service
CVE-2017-18249 kernel: Race condition in fs/f2fs/node.c:add_free_nid() function allows local users to cause denial of service
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.
Upstream patch:
https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1563517]
---
This was fixed for Fedora with the 4.12 kernel
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61ddf8117c26ac5b295e1233eaa9629a94ca3http://www.securitytracker.com/id/1041432https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlhttps://usn.ubuntu.com/3932-1/https://usn.ubuntu.com/3932-2/http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61ddf8117c26ac5b295e1233eaa9629a94ca3http://www.securitytracker.com/id/1041432https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlhttps://usn.ubuntu.com/3932-1/https://usn.ubuntu.com/3932-2/
2018-03-26
Published