CVE-2016-7097

Description

The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.

Category

4.4
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-3146-2 vendor advisory
http://www.ubuntu.com/usn/USN-3146-1 vendor advisory
https://source.android.com/security/bulletin/2017-04-01
http://www.securityfocus.com/bid/92659 vdb entry
https://access.redhat.com/errata/RHSA-2017:2669 vendor advisory
http://www.spinics.net/lists/linux-fsdevel/msg98328.html mailing list third party advisory patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef issue tracking patch
http://www.openwall.com/lists/oss-security/2016/08/26/3 mailing list
http://rhn.redhat.com/errata/RHSA-2017-0817.html vendor advisory
http://www.ubuntu.com/usn/USN-3147-1 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1368938 issue tracking third party advisory
https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef third party advisory patch
https://access.redhat.com/errata/RHSA-2017:2077 vendor advisory
https://access.redhat.com/errata/RHSA-2017:1842 vendor advisory
http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2 mailing list patch
http://www.securitytracker.com/id/1038201 vdb entry
https://support.f5.com/csp/article/K31603170?utm_source=f5support&%3Butm_medium=RSS

Frequently Asked Questions

What is the severity of CVE-2016-7097?
CVE-2016-7097 has been scored as a medium severity vulnerability.
How to fix CVE-2016-7097?
To fix CVE-2016-7097, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-7097 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-7097 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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