AZL-112421

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Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-112421.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-112421
Upstream
  • CVE-2026-93011
Published
2026-10-29T13:17:16Z
Modified
2026-11-03T05:33:06Z
Summary
CVE-2026-93011 affecting package dnsmasq 2.93-1
Details

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.

References

Affected packages

Azure Linux:3 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:rpm/azure-linux/dnsmasq

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
2.93-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-112421.json"