Description
A localhost.localdomain whitelist entry in valid_host() in scheduler/client.c in CUPS before 2.2.2 allows remote attackers to execute arbitrary IPP commands by sending POST requests to the CUPS daemon in conjunction with DNS rebinding. The localhost.localdomain name is often resolved via a DNS server (neither the OS nor the web browser is responsible for ensuring that localhost.localdomain is 127.0.0.1).
Mitigation
Minimal update. May introduce new vulnerabilities or breaking changes.
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 alpine v3.5 | | =1.4.1-r0 || =1.4.2-r0 || =1.4.2-r1 || =1.4.2-r2 || =1.4.3-r0 || =1.4.3-r1 || =1.4.3-r2 || =1.4.3-r3 || =1.4.4-r0 || =1.4.4-r1 || =1.4.5-r0 || =1.4.6-r0 || =1.4.7-r0 || =1.4.8-r0 || =1.5.0-r0 || =1.5.0-r1 || =1.5.0-r2 || =1.5.2-r0 || =1.5.2-r1 || =1.5.2-r2 || =1.5.2-r3 || =1.5.3-r0 || =1.5.4-r0 || =1.5.4-r1 || =1.6.1-r0 || =1.6.1-r1 || =1.6.2-r0 || =1.6.2-r1 || =1.6.3-r0 || =1.6.4-r0 || =1.7.0-r0 || =1.7.0-r1 || =1.7.1-r0 || =1.7.2-r0 || =1.7.3-r0 || =1.7.3-r1 || =1.7.4-r0 || =1.7.5-r0 || =2.0.0-r0 || =2.0.1-r0 || =2.0.2-r0 || =2.0.2-r1 || =2.0.2-r2 || =2.0.3-r0 || =2.0.4-r0 || =2.1.0-r0 || =2.1.1-r0 || =2.1.2-r0 || =2.1.3-r0 || =2.1.3-r1 || =2.1.4-r0 || =2.2.1-r0 || =2.2.1-r1 || >=0 <2.2.2-r0 | 2.2.2-r0 |
 debian 12 | | | 2.2.3-2 |
debian 13 | | | 2.2.3-2 |
debian 11 | | | 2.2.3-2 |
debian 14 | | | 2.2.3-2 |
 rpm rhel6 | | - | - |
rpm rhel7 | | | 1:1.6.3-51.el7 |
