CVE-2019-9084

In Hoteldruid before 2.3.1, a division by zero was discovered in $num_tabelle in tab_tariffe.php (aka the numtariffa1 parameter) due to the mishandling of non-numeric values, as demonstrated by the /tab_tariffe.php?anno=[YEAR]&numtariffa1=1a URI. It could allow an administrator to conduct remote denial of service (disrupting certain business functions of the product).

• CWE-369

• http://www.hoteldruid.com/en/download.htmlRelease Notes, Vendor Advisory
• https://metamorfosec.com/Files/Advisories/METS-2019-005-A_division_by_zero_in_Hoteldruid_before_v2.3.1.txtExploit, Third Party Advisory
• http://www.hoteldruid.com/en/download.htmlRelease Notes, Vendor Advisory
• https://metamorfosec.com/Files/Advisories/METS-2019-005-A_division_by_zero_in_Hoteldruid_before_v2.3.1.txtExploit, Third Party Advisory

Published

Jun 7, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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