7.5

CVE-2018-18227: debian debian_linux NULL Pointer Dereference

CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2018-18227DEBIAN-CVE-2018-18227
Published 12-10-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-18227 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 3.18% chance of exploitation in the next 30 days, higher than 87.8% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
3.18%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 7
DSA-4359-1OPENSUSE-SU-2020:0362-1OPENSUSE-SU-2024:11513-1SUSE-SU-2018:3282-1SUSE-SU-2018:3590-1SUSE-SU-2018:3590-2

Timeline

  1. 12-10-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

In Wireshark 2.6.0 to 2.6.3 and 2.4.0 to 2.4.9, the MS-WSP protocol dissector could crash. This was addressed in epan/dissectors/packet-mswsp.c by properly handling NULL return values.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

3.18%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

+0.06 pp

From 3.12% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.18%

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
Ubuntu1 product
  • wireshark< 2.6.4-2~ubuntu14.04.1 | < 2.6.4-2~ubuntu16.04.0 | < 2.6.4-2~ubuntu18.04.0
Wireshark1 product
  • wireshark≥ 2.4.0, ≤ 2.4.9 | ≥ 2.6.0, ≤ 2.6.3

3 vendors · 4 products

References

12 links
Show all 12 references