AZL-103356

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Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-103356.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-103356
Upstream
  • CVE-2026-19662
Published
2026-09-16T14:17:04Z
Modified
2026-09-22T05:34:53Z
Summary
CVE-2026-19662 affecting package bind 9.20.26-1
Details

An attacker may be able to cause a named resolver to abort. The attack requires inducing the victim resolver to send multiple queries for a DNSSEC-signed zone hosted by an authoritative server under the control of the attacker. If the auth responds with a particular sequence of crafted answers, and those answers arrive in a particular order with particular timing, the named resolver will encounter a use-after-free bug, and abort. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.

References

Affected packages

Azure Linux:3 / bind

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
9.20.26-1

Database specific

source 
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-103356.json"