CVE-2020-11080
03.06.2020, 23:15
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.Enginsight
| Vendor | Product | Version |
|---|---|---|
| nghttp2 | nghttp2 | 𝑥 < 1.41.0 |
| debian | debian_linux | 9.0 |
| debian | debian_linux | 10.0 |
| opensuse | leap | 15.1 |
| oracle | banking_extensibility_workbench | 14.3.0 |
| oracle | banking_extensibility_workbench | 14.4.0 |
| oracle | blockchain_platform | 𝑥 < 21.1.2 |
| oracle | enterprise_communications_broker | 3.1.0 |
| oracle | enterprise_communications_broker | 3.2.0 |
| oracle | graalvm | 19.3.2 |
| oracle | graalvm | 20.1.0 |
| oracle | mysql | 7.3.0 ≤ 𝑥 ≤ 7.3.30 |
| oracle | mysql | 7.4.0 ≤ 𝑥 ≤ 7.4.29 |
| oracle | mysql | 7.5.0 ≤ 𝑥 ≤ 7.5.19 |
| oracle | mysql | 7.6.0 ≤ 𝑥 ≤ 7.6.15 |
| oracle | mysql | 8.0.0 ≤ 𝑥 ≤ 8.0.21 |
| nodejs | node.js | 10.0.0 ≤ 𝑥 ≤ 10.12.0 |
| nodejs | node.js | 10.13.0 ≤ 𝑥 < 10.21.0 |
| nodejs | node.js | 12.0.0 ≤ 𝑥 ≤ 12.12.0 |
| nodejs | node.js | 12.13.0 ≤ 𝑥 < 12.18.0 |
| nodejs | node.js | 14.0.0 ≤ 𝑥 ≤ 14.4.0 |
𝑥
= Vulnerable software versions
Debian Releases
Debian Product | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| nghttp2 |
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| nodejs |
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Ubuntu Releases
Ubuntu Product | |||||||||||||||||||||||||||
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| nghttp2 |
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| nodejs |
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Common Weakness Enumeration
- CWE-707 - Improper NeutralizationThe product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being read from an upstream component or sent to a downstream component.
- CWE-400 - Uncontrolled Resource ConsumptionThe software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
References