6.5

CVE-2018-7540: debian debian_linux Uncontrolled Resource Consumption

Modified
AliasesALPINE-CVE-2018-7540UBUNTU-CVE-2018-7540DEBIAN-CVE-2018-7540
Published 27-02-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-7540 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in debian debian_linux. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.0 (NVD)
EPSS score
0.43%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 4
DLA-1300-1DLA-1577-1DSA-4131-1OPENSUSE-SU-2024:11520-1SUSE-SU-2018:0678-1SUSE-SU-2018:0909-1

Timeline

  1. 27-02-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.43% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Debian2 products
  • xen< 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5
  • debian_linuxEOL9.0
Alpine1 product
  • xen< 4.10.0-r2 | < 4.6.3-r4 | < 4.7.3-r7 | < 4.8.2-r6 | < 4.9.1-r4
Ubuntu1 product
  • xenAll versions (No fix recorded)
Xen1 product

4 vendors · 5 products

References

13 links
Show all 13 references