What’s Vulnerable › Vulnerabilities

CVE-2003-1013

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2004-01-05 · updated 2026-06-16
• Weakness: CWE-476

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.

Affected products

• Ethereal: before 0.10.0 — fixed in 0.10.0

How to fix

Upgrade to a fixed version: Ethereal 0.10.0. Check the vendor advisory for mitigations.

References

• http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000801
• http://secunia.com/advisories/10531
• http://secunia.com/advisories/10568
• http://secunia.com/advisories/10570
• http://www.debian.org/security/2003/dsa-407
• http://www.ethereal.com/appnotes/enpa-sa-00012.html
• http://www.mandriva.com/security/advisories?name=MDKSA-2004:002
• http://www.redhat.com/support/errata/RHSA-2004-001.html
• http://www.redhat.com/support/errata/RHSA-2004-002.html
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10097

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