7.5

CVE-2018-6197: canonical ubuntu_linux NULL Pointer Dereference

CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2018-6197UBUNTU-CVE-2018-6197DEBIAN-CVE-2018-6197
Published 25-01-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-6197 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 4.39% chance of exploitation in the next 30 days, higher than 91.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
4.39%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 5 · Related 3
DLA-2195-1MGASA-2018-0312OPENSUSE-SU-2024:11504-1SUSE-SU-2019:0776-1USN-3555-1

Timeline

  1. 25-01-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

w3m through 0.5.3 is prone to a NULL pointer dereference flaw in formUpdateBuffer in form.c.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

4.39%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

0.00 pp

From 4.39% on 19-09-2026

19-09-202619-10-2026
EPSS score
4.39%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    W3M

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Alpine1 product
  • w3m< 0.5.3_git20241203-r0
Canonical1 product
Debian1 product
  • w3m< 0.5.3-36
Tats1 product
Ubuntu1 product
  • w3m< 0.5.3-15ubuntu0.2 | < 0.5.3-26ubuntu0.2

5 vendors · 5 products

References

13 links
Show all 13 references