CVE-2017-10911

Description

The make_response function in drivers/block/xen-blkback/blkback.c in the Linux kernel before 4.11.8 allows guest OS users to obtain sensitive information from host OS (or other guest OS) kernel memory by leveraging the copying of uninitialized padding fields in Xen block-interface response structures, aka XSA-216.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://xenbits.xen.org/xsa/advisory-216.html mitigation vendor advisory
http://www.debian.org/security/2017/dsa-3927 vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=089bc0143f489bd3a4578bdff5f4ca68fb26f341 mailing list third party advisory patch
http://www.debian.org/security/2017/dsa-3920 vendor advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html mailing list
https://security.gentoo.org/glsa/201708-03 vendor advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.8 third party advisory mailing list
http://www.securityfocus.com/bid/99162 vdb entry third party advisory
http://www.securitytracker.com/id/1038720 vdb entry third party advisory
https://github.com/torvalds/linux/commit/089bc0143f489bd3a4578bdff5f4ca68fb26f341 third party advisory patch
http://www.debian.org/security/2017/dsa-3945 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-10911?
CVE-2017-10911 has been scored as a medium severity vulnerability.
How to fix CVE-2017-10911?
To fix CVE-2017-10911, 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-2017-10911 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-10911 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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