7.5

CVE-2018-18898: bestpractical request_tracker Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2018-18898UBUNTU-CVE-2018-18898USN-4517-1
Published 17-03-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-18898 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in bestpractical request_tracker. EPSS estimates a 2.36% chance of exploitation in the next 30 days, higher than 83.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.36%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 17-03-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The email-ingestion feature in Best Practical Request Tracker 4.1.13 through 4.4 allows denial of service by remote attackers via an algorithmic complexity attack on email address parsing.

CVSS metrics

6 scores · 4 sources · 3 versions

EPSS trend

Probability

2.36%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.36% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.36%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian2 products
  • libemail-address-list-perl< 0.05-1+deb8u1 | < 0.06-1
  • debian_linuxEOL8.0 | 10.0
Alpine1 product
  • perl-email-address-list< 0.06-r0
Bestpractical1 product
Canonical1 product
Fedoraproject1 product
Ubuntu1 product
  • libemail-address-list-perl< 0.06-1 | < 0.05-1+deb9u1build0.16.04.1 | < 0.05-1+deb9u1build0.18.04.1

6 vendors · 7 products

References

13 links
Show all 13 references