CVE-2023-35945
CVSS 3.1 Score 7.5 of 10 (high)
Details
Published Jul 13, 2023
Updated: Oct 24, 2023
CWE ID 400
CWE ID 459
Summary
CVE-2023-35945 is a vulnerability affecting Envoy, a cloud-native proxy, where its HTTP/2 codec can leak header maps and bookkeeping structures upon receiving specific frames from an upstream server. In the nghttp2 library, cleanup of pending requests does not properly de-allocate the bookkeeping structure due to an error return, leading to memory leakage. This issue can result in denial of service through memory exhaustion. Version 1.26.3, 1.25.8, 1.24.9, and 1.23.11 have been released to address this vulnerability.
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Affected Products
- Envoyproxy Envoy
- nghttp2
Affected Vendors
- Nghttp2
Advisories, Assessments, and Mitigations
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