AZL-111020

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Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-111020.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-111020
Upstream
  • CVE-2026-115449
Published
2026-10-22T22:18:06Z
Modified
2026-10-27T05:36:16Z
Summary
CVE-2026-115449 affecting package libslirp 4.9.3-1
Details

A flaw was found in libslirp. When handling ICMP echo requests, the reply length is not updated to match the actual data received from the host. Under specific conditions where the normal ICMP socket is unavailable, this length mismatch causes the host's real IP address to be leaked to the guest in the echo reply, breaking the NAT isolation that user-mode networking is expected to provide.

References

Affected packages

Azure Linux:3 / libslirp

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
4.9.3-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-111020.json"