CVE-2015-8839
MEDIUM severity · CVSS 5.1 · CWE-362
5.1CVSS MEDIUM
Summary
Multiple race conditions in the ext4 filesystem implementation in the Linux kernel before 4.5 allow local users to cause a denial of service (disk corruption) by writing to a page that is associated with a different user's file after unsynchronized hole punching and page-fault handling.
Impact & exploitability
Attack vectorLocal
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea3d7209ca01da209cda6f0dea8be9cc4b7a933bAdvisory
- http://www.openwall.com/lists/oss-security/2016/04/01/4Advisory
- http://www.securityfocus.com/bid/85798Advisory
- http://www.securitytracker.com/id/1035455Advisory
- http://www.ubuntu.com/usn/USN-3005-1Advisory
- http://www.ubuntu.com/usn/USN-3006-1Advisory
- http://www.ubuntu.com/usn/USN-3007-1Advisory
- https://access.redhat.com/errata/RHSA-2017:1842Advisory