CVEvulnerability
CVE-2017-18224
4.7 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2018-03-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 4.7 MEDIUM — CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 1.9 LOW — AV:L/AC:M/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-362
Description
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 configurations
• linux linux kernel (< 4.15)
Related
Weakness · CWE (1)
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917f Patch, Vendor Advisory
- http://www.securityfocus.com/bid/103353 Third Party Advisory, VDB Entry
- https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917f Patch, Third Party Advisory
- https://www.debian.org/security/2018/dsa-4188 www.debian.org
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917f Patch, Vendor Advisory
- http://www.securityfocus.com/bid/103353 Third Party Advisory, VDB Entry
- https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917f Patch, Third Party Advisory
- https://www.debian.org/security/2018/dsa-4188 www.debian.org