What’s Vulnerable › Vulnerabilities

CVE-2017-15593

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% 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-772

Description

An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service (memory leak) because reference counts are mishandled.

Affected products

• xen: through 4.9.0

References

• 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/msg00021.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-242.html
• 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/msg00021.html
• https://security.gentoo.org/glsa/201801-14
• https://support.citrix.com/article/CTX228867

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