vulnwire
6.5med

CVE-2018-7540

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemp…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
6.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 37%
Public exploits
0
none known

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

Exploit prediction (EPSS)

0.43% probability of exploitation in the next 30 days, higher than 37% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.06.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
NVD2.04.9AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

  • xenbits.xen.org /xsa/advisory-252.html · x_refsource_CONFIRM, x_transferred
  • security.gentoo.org /glsa/201810-06 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • securitytracker.com /id/1040773 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • lists.debian.org /debian-lts-announce/2018/11/msg00013.html · mailing-list, x_refsource_MLIST, x_transferred
  • lists.debian.org /debian-lts-announce/2018/03/msg00003.html · mailing-list, x_refsource_MLIST, x_transferred
  • securityfocus.com /bid/103174 · vdb-entry, x_refsource_BID, x_transferred
  • debian.org /security/2018/dsa-4131 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • support.citrix.com /article/CTX232655 · x_refsource_CONFIRM, x_transferred
  • support.citrix.com /article/CTX232096 · x_refsource_CONFIRM, x_transferred

Sources

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