apache2: In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection...
CVE-2018-11763 is fixed in 6 products on 1 platform, first by apache2 2.4.29-1ubuntu4.4, released September 24, 2018. It is not reported as exploited. Patch Radar priority: Routine.
In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| apache2 · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.4 | apache2 2.4.29-1ubuntu4.4 | Sep 24, 2018 |
| apache2-bin · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.4 | apache2-bin 2.4.29-1ubuntu4.4 | Sep 24, 2018 |
| apache2-data · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.4 | apache2-data 2.4.29-1ubuntu4.4 | Sep 24, 2018 |
| apache2-suexec-custom · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.4 | apache2-suexec-custom 2.4.29-1ubuntu4.4 | Sep 24, 2018 |
| apache2-suexec-pristine · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.4 | apache2-suexec-pristine 2.4.29-1ubuntu4.4 | Sep 24, 2018 |
| apache2-utils · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.4 | apache2-utils 2.4.29-1ubuntu4.4 | Sep 24, 2018 |
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