AZL-113197

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Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-113197.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-113197
Upstream
Published
2026-11-08T02:16:49Z
Modified
2026-11-14T05:30:17Z
Summary
CVE-2026-123570 affecting package netavark 1.10.3-9
Details

The DNS wire-format message parser in hickory-proto (Hickory DNS) 0.18 before 0.26.2 preallocates record vectors sized by the untrusted ANCOUNT, NSCOUNT, and ARCOUNT header fields before reading record data. Remote attackers can send a UDP datagram, or a spoofed response to a client/resolver, with these counts set to 65535, forcing about 18MB of allocation per message.

References

Affected packages

Azure Linux:3 / netavark

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
1.10.3-9

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-113197.json"