Summary
Jonathan Looney discovered that nginx incorrectly handled the HTTP/2
implementation. A remote attacker could possibly use this issue to consume
resources, leading to a denial of service.
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | nginx | 1.10.3-0ubuntu0.16.04.4 |
| Ubuntu · 18.04 LTS 18.04:LTS | nginx | 1.14.0-0ubuntu1.4 |
Vulnerabilities 3
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High 7.5
Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service
Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manip…
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High 7.5
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority…
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High 7.5CVE-2019-9516 EPSS 57%
Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service
Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. S…