Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-89925.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-89925
Upstream
Published
2026-06-09T17:17:05Z
Modified
2026-08-30T05:26:50Z
Summary
CVE-2026-34183 affecting package openssl for versions less than 3.3.7-3
Details

Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames.

Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service.

A remote peer may exhaust heap memory by flooding the local QUIC stack with PATHCHALLENGE frames. The local QUIC stack allocates a PATHRESPONSE frame for every PATHCHALLENGE it receives. The allocated PATHRESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer.

The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.

References

Affected packages

Azure Linux:3 / openssl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.3.7-3

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-89925.json"