6.5

CVE-2018-18661: canonical ubuntu_linux NULL Pointer Dereference

CVSS: 6.5v3.0MediumModified
AliasesALPINE-CVE-2018-18661MGASA-2018-0444UBUNTU-CVE-2018-18661
Published 26-10-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-18661 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 2.87% chance of exploitation in the next 30 days, higher than 86.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
37/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.0 (NVD)
EPSS score
2.87%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 8 · Related 6
DLA-2009-1OPENSUSE-SU-2024:11461-1RHSA-2019:2053SUSE-SU-2018:3879-1SUSE-SU-2018:3911-1SUSE-SU-2018:3911-2

Timeline

  1. 26-10-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in LibTIFF 4.0.9. There is a NULL pointer dereference in the function LZWDecode in the file tif_lzw.c.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

2.87%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 2.87% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.87%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugzilla.maptools.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Alpine1 product
  • tiff< 4.0.10-r0
Canonical1 product
Debian1 product
  • tiff< 4.0.10-1
Libtiff1 product
Mageia1 product
  • libtiff< 4.0.9-1.8.mga6
Ubuntu1 product
  • tiff< 4.0.3-7ubuntu0.10 | < 4.0.6-1ubuntu0.5 | < 4.0.9-5ubuntu0.1

6 vendors · 6 products

References

12 links
Show all 12 references