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Vulnerability record · CVE-2003-0356 · published 9 June 2003

CVE-2003-0356: Ethereal vulnerability

Ethereal · Ethereal

Multiple off-by-one vulnerabilities in Ethereal 0.9.11 and earlier allow remote attackers to cause a denial of service and possibly execute arbitrary code via the (1) AIM, (2) GIOP Gryphon, (3) OSPF, (4) PPTP, (5) Quake, (6) Quake2, (7) Quake3, (8) Rsync, (9) SMB, (10) SMPP, and (11) TSP dissectors, which do not properly use the tvb_get_nstringz and tvb_get_nstringz0 functions.

9.8 CVSS 3.1 Critical EPSS 9.6% · top 4.7% CWE-193 · CWE-193
9.8CVSS 3.1 base score, v2 10.0
9.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

Multiple off-by-one vulnerabilities in Ethereal 0.9.11 and earlier allow remote attackers to cause a denial of service and possibly execute arbitrary code via the (1) AIM, (2) GIOP Gryphon, (3) OSPF, (4) PPTP, (5) Quake, (6) Quake2, (7) Quake3, (8) Rsync, (9) SMB, (10) SMPP, and (11) TSP dissectors, which do not properly use the tvb_get_nstringz and tvb_get_nstringz0 functions.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.debian.org/security/2003/dsa-313 Broken LinkPatchVendor Advisory
http://www.ethereal.com/appnotes/enpa-sa-00009.html Broken LinkPatchVendor Advisory
http://www.kb.cert.org/vuls/id/641013 Third Party AdvisoryUS Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2003:067 Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2003-077.html Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A69 Broken Link
http://www.debian.org/security/2003/dsa-313 Broken LinkPatchVendor Advisory
http://www.ethereal.com/appnotes/enpa-sa-00009.html Broken LinkPatchVendor Advisory
http://www.kb.cert.org/vuls/id/641013 Third Party AdvisoryUS Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2003:067 Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2003-077.html Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A69 Broken Link

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2003-0356), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.