7.5

CVE-2003-1013: ethereal NULL Pointer Dereference

CVSS: 7.5v3.1HighModified
Published 17-12-2003Last modified 08-08-2024
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Vulnerability summary

CVE-2003-1013 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in ethereal. EPSS estimates a 2.72% chance of exploitation in the next 30 days, higher than 85.8% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.72%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
DSA-407RHSA-2004:002

Timeline

  1. 17-12-2003
    PublishedVulnerability first disclosed.
  2. 08-08-2024
    Last modifiedVulnerability information updated.

Description

The Q.931 dissector in Ethereal before 0.10.0, and Tethereal, allows remote attackers to cause a denial of service (crash) via a malformed Q.931, which triggers a null dereference.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.72%

Chance of exploitation in the next 30 days

Percentile

86%

Versus all other CVEs

30-day change

0.00 pp

From 2.72% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.72%

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

Ethereal1 product

1 vendor · 1 product

References

11 links
Show all 11 references