Unrated severityNVD Advisory· Published Oct 20, 2003· Updated Jun 16, 2026
CVE-2003-0688
CVE-2003-0688
Description
The DNS map code in Sendmail 8.12.8 and earlier, when using the "enhdnsbl" feature, does not properly initialize certain data structures, which allows remote attackers to cause a denial of service (process crash) via an invalid DNS response that causes Sendmail to free incorrect data.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
27cpe:2.3:a:redhat:sendmail:8.12.5-7:*:i386:*:*:*:*:*+ 7 more
- cpe:2.3:a:redhat:sendmail:8.12.5-7:*:i386:*:*:*:*:*
- cpe:2.3:a:redhat:sendmail:8.12.5-7:*:i386_cf:*:*:*:*:*
- cpe:2.3:a:redhat:sendmail:8.12.5-7:*:i386_dev:*:*:*:*:*
- cpe:2.3:a:redhat:sendmail:8.12.5-7:*:i386_doc:*:*:*:*:*
- cpe:2.3:a:redhat:sendmail:8.12.8-4:*:i386:*:*:*:*:*
- cpe:2.3:a:redhat:sendmail:8.12.8-4:*:i386_cf:*:*:*:*:*
- cpe:2.3:a:redhat:sendmail:8.12.8-4:*:i386_dev:*:*:*:*:*
- cpe:2.3:a:redhat:sendmail:8.12.8-4:*:i386_doc:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.1:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:a:sendmail:sendmail:8.12.1:*:*:*:*:*:*:*
- cpe:2.3:a:sendmail:sendmail:8.12.2:*:*:*:*:*:*:*
- cpe:2.3:a:sendmail:sendmail:8.12.3:*:*:*:*:*:*:*
- cpe:2.3:a:sendmail:sendmail:8.12.4:*:*:*:*:*:*:*
- cpe:2.3:a:sendmail:sendmail:8.12.5:*:*:*:*:*:*:*
- cpe:2.3:a:sendmail:sendmail:8.12.6:*:*:*:*:*:*:*
- cpe:2.3:a:sendmail:sendmail:8.12.7:*:*:*:*:*:*:*
- cpe:2.3:a:sendmail:sendmail:8.12.8:*:*:*:*:*:*:*
- (no CPE)range: <=8.12.8
Patches
Vulnerability mechanics
References
8- www.redhat.com/support/errata/RHSA-2003-265.htmlnvdPatchVendor Advisory
- www.kb.cert.org/vuls/id/993452nvdUS Government Resource
- patches.sgi.com/support/free/security/advisories/20030803-01-Pnvd
- distro.conectiva.com.br/atualizacoes/nvd
- www.mandriva.com/security/advisoriesnvd
- www.novell.com/linux/security/advisories/2003_035_sendmail.htmlnvd
- www.sendmail.org/dnsmap1.htmlnvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A597nvd
News mentions
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