5.5

CVE-2018-18459: xpdfreader xpdf NULL Pointer Dereference

CVSS: 5.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-18459DEBIAN-CVE-2018-18459
Published 18-10-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-18459 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in xpdfreader xpdf. EPSS estimates a 1.14% chance of exploitation in the next 30 days, higher than 66.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.0 (NVD)
EPSS score
1.14%
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. 18-10-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The function DCTStream::getBlock in Stream.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted pdf file, as demonstrated by pdftoppm.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.14%

Chance of exploitation in the next 30 days

Percentile

66%

Versus all other CVEs

30-day change

0.00 pp

From 1.14% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.14%

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

Ubuntu2 products
  • ipeAll versions (No fix recorded)
  • xpdfAll versions (No fix recorded)
Debian1 product
  • xpdfAll versions (No fix recorded)
Xpdfreader1 product

3 vendors · 4 products

References

5 links