Vulnerability Description
fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.6.1 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3cIssue TrackingPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2Release NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2017/05/15/2Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/98491
- https://bugzilla.redhat.com/show_bug.cgi?id=1450261Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f4716884137682Issue TrackingPatchThird Party Advisory
- https://source.android.com/security/bulletin/2017-09-01
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3cIssue TrackingPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2Release NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2017/05/15/2Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/98491
- https://bugzilla.redhat.com/show_bug.cgi?id=1450261Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f4716884137682Issue TrackingPatchThird Party Advisory
- https://source.android.com/security/bulletin/2017-09-01
FAQ
What is CVE-2017-7495?
CVE-2017-7495 is a vulnerability with a CVSS score of 5.5 (MEDIUM). fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from oth...
How severe is CVE-2017-7495?
CVE-2017-7495 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-7495?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.