CVE-2017-17450

Description

net/netfilter/xt_osf.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for add_callback and remove_callback operations, which allows local users to bypass intended access restrictions because the xt_osf_fingers data structure is shared across all net namespaces.

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/102110 vdb entry third party advisory
https://usn.ubuntu.com/3617-1/ vendor advisory
https://usn.ubuntu.com/3619-2/ vendor advisory
https://www.debian.org/security/2018/dsa-4082 vendor advisory
https://usn.ubuntu.com/3617-3/ vendor advisory
https://lkml.org/lkml/2017/12/5/982 third party advisory
https://usn.ubuntu.com/3583-2/ vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html vendor advisory
https://usn.ubuntu.com/3632-1/ vendor advisory
https://usn.ubuntu.com/3583-1/ vendor advisory
https://www.debian.org/security/2017/dsa-4073 vendor advisory
https://usn.ubuntu.com/3617-2/ vendor advisory
https://usn.ubuntu.com/3619-1/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-17450?
CVE-2017-17450 has been scored as a high severity vulnerability.
How to fix CVE-2017-17450?
To fix CVE-2017-17450, 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-2017-17450 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-17450 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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