Description
A flaw was found in dnsmasq. After a reduction of internal domain-name buffer sizes, the DNSSEC validator can write a few bytes past a name buffer when converting names to and from DNS wire format. An attacker who can cause the server to validate a crafted DNSSEC response may overwrite a small amount of adjacent heap metadata. DNSSEC support is not compiled in by default and must also be enabled at runtime.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Red Hat Red Hat Ceph Storage 9
Default version status: affected
Red Hat Red Hat Enterprise Linux 10
Default version status: affected
Red Hat Red Hat Enterprise Linux 6
Default version status: affected
Red Hat Red Hat Enterprise Linux 7
Default version status: affected
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
Red Hat Red Hat Enterprise Linux 9
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 4
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 5
Default version status: affected
Red Hat Red Hat OpenShift Container Platform 5
Default version status: affected
Red Hat Red Hat OpenStack Platform 13 (Queens)
Default version status: affected
Red Hat Red Hat OpenStack Platform 18.0
Default version status: affected