CVE-2017-15588

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-10-18 · updated 2026-06-17
Weakness: CWE-362

Description

An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to execute arbitrary code on the host OS because of a race condition that can cause a stale TLB entry.

Affected products

xen: 4.9.0

References

http://www.securityfocus.com/bid/101490
http://www.securitytracker.com/id/1039568
https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
https://security.gentoo.org/glsa/201801-14
https://support.citrix.com/article/CTX228867
https://www.debian.org/security/2017/dsa-4050
https://xenbits.xen.org/xsa/advisory-241.html
http://www.securityfocus.com/bid/101490
http://www.securitytracker.com/id/1039568
https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html

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