What’s Vulnerable › Vulnerabilities

CVE-1999-1199

• Severity: critical (CVSS 10.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1998-08-07 · updated 2026-06-16

Description

Apache WWW server 1.3.1 and earlier allows remote attackers to cause a denial of service (resource exhaustion) via a large number of MIME headers with the same name, aka the "sioux" vulnerability.

Affected products

• Apache HTTP Server: through 1.3.1

References

• http://marc.info/?l=bugtraq&m=90252779826784&w=2
• http://marc.info/?l=bugtraq&m=90276683825862&w=2
• http://marc.info/?l=bugtraq&m=90280517007869&w=2
• http://marc.info/?l=bugtraq&m=90286768232093&w=2
• http://www.redhat.com/support/errata/rh51-errata-general.html#apache
• https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
• http://marc.info/?l=bugtraq&m=90252779826784&w=2
• http://marc.info/?l=bugtraq&m=90276683825862&w=2
• http://marc.info/?l=bugtraq&m=90280517007869&w=2

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