CVE-2017-15595

Public Exploit

Description

An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking.

Category

8.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.68% Top 30%
Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html mailing list
https://xenbits.xen.org/xsa/advisory-240.html patch vendor advisory mitigation
https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html mailing list
https://www.debian.org/security/2017/dsa-4050 vendor advisory
https://www.exploit-db.com/exploits/43014/ exploit
https://support.citrix.com/article/CTX228867
https://security.gentoo.org/glsa/201801-14 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-15595?
CVE-2017-15595 has been scored as a high severity vulnerability.
How to fix CVE-2017-15595?
To fix CVE-2017-15595, 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-2017-15595 being actively exploited in the wild?
It is possible that CVE-2017-15595 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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