DescriptionAn issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that record might trigger an undefined behavior leading to a crash.
Overall state of this security issue: Does not affect SUSE products
This issue is currently rated as having moderate severity.SUSE Bugzilla entry: 1054799 [RESOLVED] No SUSE Security Announcements cross referenced.