Vulnerability CVE-2017-7495


Published: 2017-05-15   Modified: 2017-05-26

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.

Vendor: Linux
Product: Linux kernel 
Version: 4.6.1;

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2
http://www.openwall.com/lists/oss-security/2017/05/15/2
https://bugzilla.redhat.com/show_bug.cgi?id=1450261
https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824

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