CVE-2017-18224
published 2018-03-12CVE-2017-18224: In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read…
PriorityP415medium4.7CVSS 3.0
AVLACHPRLUINSUCNINAH
EPSS
0.27%
19.8th percentile
In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 4.15.4-1 (bookworm) | linux 4.15.4-1 (bookworm) |
| linux | linux_kernel | < 4.15 | 4.15 |
| linux | linux_kernel | >= 0 < 4.15.4-1 | 4.15.4-1 |
| linux | linux_kernel | >= 0 < 4.15.4-1 | 4.15.4-1 |
| linux | linux_kernel | >= 0 < 4.15.4-1 | 4.15.4-1 |
| linux | linux_kernel | >= 0 < 4.15.4-1 | 4.15.4-1 |
CVSS provenance
nvdv3.04.7MEDIUMCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.01.9LOWAV:L/AC:M/Au:N/C:N/I:N/A:P
osv4.7MEDIUM
vendor_debian4.7MEDIUM
vendor_redhat4.7MEDIUM
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Red Hat
kernel: race condition due to concurrent access to extent tree in fs/ocfs2/aops.c
vendor_redhat·2017-11-15·CVSS 4.7
CVE-2017-18224 [MEDIUM] CWE-362 kernel: race condition due to concurrent access to extent tree in fs/ocfs2/aops.c
kernel: race condition due to concurrent access to extent tree in fs/ocfs2/aops.c
In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.
A flaw was found in the Linux kernel that fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode. This allows local users to cause a denial of service by modifying a certain e_cpos field.
Package: kernel (Red Hat Enterprise Linux 5) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise
Debian
CVE-2017-18224: linux - In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and co...
vendor_debian·2017·CVSS 4.7
CVE-2017-18224 [MEDIUM] CVE-2017-18224: linux - In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and co...
In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.
Scope: local
bookworm: resolved (fixed in 4.15.4-1)
bullseye: resolved (fixed in 4.15.4-1)
forky: resolved (fixed in 4.15.4-1)
sid: resolved (fixed in 4.15.4-1)
trixie: resolved (fixed in 4.15.4-1)
GHSA
GHSA-6434-jhwc-gm9v: In the Linux kernel before 4
ghsa_unreviewed·2022-05-14
CVE-2017-18224 [MEDIUM] CWE-362 GHSA-6434-jhwc-gm9v: In the Linux kernel before 4
In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.
OSV
CVE-2017-18224: In the Linux kernel before 4
osv·2018-03-12·CVSS 4.7
CVE-2017-18224 [MEDIUM] CVE-2017-18224: In the Linux kernel before 4
In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-18224 kernel: race condition due to concurrent access to extent tree in fs/ocfs2/aops.c [fedora-all]
bugzilla·2018-03-16·CVSS 4.7
CVE-2017-18224 [MEDIUM] CVE-2017-18224 kernel: race condition due to concurrent access to extent tree in fs/ocfs2/aops.c [fedora-all]
CVE-2017-18224 kernel: race condition due to concurrent access to extent tree in fs/ocfs2/aops.c [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 aff
Bugzilla
CVE-2017-18224 kernel: race condition due to concurrent access to extent tree in fs/ocfs2/aops.c
bugzilla·2018-03-16·CVSS 4.7
CVE-2017-18224 [MEDIUM] CVE-2017-18224 kernel: race condition due to concurrent access to extent tree in fs/ocfs2/aops.c
CVE-2017-18224 kernel: race condition due to concurrent access to extent tree in fs/ocfs2/aops.c
A flaw was found in the Linux kernel that fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service by modifying a certain e_cpos field.
References:
https://marc.info/?t=150884957800012&r=1&w=2
An upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917f
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1557557]
---
This was fixed for Fedora with the 4.15 rebases.
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917fhttp://www.securityfocus.com/bid/103353https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917fhttps://www.debian.org/security/2018/dsa-4188http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917fhttp://www.securityfocus.com/bid/103353https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917fhttps://www.debian.org/security/2018/dsa-4188
2018-03-12
Published