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Vendor Workaround
The following measures reduce risk: 1. Do not enable --dnssec or --trust-anchor unless DNSSEC validation is required. 2. Omit -DHAVE_DNSSEC from COPTS (this is the default build). 3. If DNSSEC validation is required, restrict dnsmasq to trusted upstream resolvers.
Tracking
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Thu, 29 Oct 2026 13:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Dnsmasq: dnsmasq: heap out-of-bounds write in dnssec validator via to_wire/from_wire transforms | |
| First Time appeared |
Redhat
Redhat ceph Storage Redhat enterprise Linux Redhat openshift Redhat openstack |
|
| Weaknesses | CWE-787 | |
| CPEs | cpe:/a:redhat:ceph_storage:9 cpe:/a:redhat:openshift:4 cpe:/a:redhat:openstack:13 cpe:/a:redhat:openstack:18.0 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat ceph Storage Redhat enterprise Linux Redhat openshift Redhat openstack |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-10-29T12:47:10.170Z
Reserved: 2026-09-17T14:35:34.562Z
Link: CVE-2026-93011
No data.
Status : Awaiting Analysis
Published: 2026-10-29T13:17:16.220
Modified: 2026-10-29T13:17:16.333
Link: CVE-2026-93011
No data.
OpenCVE Enrichment
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