Created attachment 1296136 [details] Permit a deflateParams() parameter change as soon as possible. Description of problem: zlib 1.2.11 introduces a bug which breaks compression in some applications Version-Release number of selected component (if applicable): 1.2.11 How reproducible: every time Steps to Reproduce: 1. install and run unifi (https://www.ubnt.com/download/unifi Actual results: 2. # curl -vvvv --compress localhost:8880/guest/s/default/ * Trying ::1... * TCP_NODELAY set * Connected to localhost (::1) port 8880 (#0) > GET /guest/s/default/ HTTP/1.1 > Host: localhost:8880 > User-Agent: curl/7.52.1 > Accept: */* > Accept-Encoding: deflate, gzip > < HTTP/1.1 200 OK < Server: Apache-Coyote/1.1 < Content-Type: text/html;charset=utf-8 < Transfer-Encoding: chunked < Content-Encoding: gzip < Vary: Accept-Encoding < Date: Tue, 23 May 2017 11:19:22 GMT < * Error while processing content unencoding: invalid code lengths set * Failed writing data * Curl_http_done: called premature == 1 * Closing connection 0 curl: (23) Error while processing content unencoding: invalid code lengths set Expected results: 2. # curl -vvvv --compress localhost:8880/guest/s/default/ * Trying ::1... * TCP_NODELAY set * Connected to localhost (::1) port 8880 (#0) > GET /guest/s/default/ HTTP/1.1 > Host: localhost:8880 > User-Agent: curl/7.52.1 > Accept: */* > Accept-Encoding: deflate, gzip > < HTTP/1.1 200 OK < Server: Apache-Coyote/1.1 < Content-Type: text/html;charset=utf-8 < Transfer-Encoding: chunked < Content-Encoding: gzip < Vary: Accept-Encoding < Date: Tue, 23 May 2017 11:19:22 GMT < <!DOCTYPE html> <html document> Additional info: works when turning off compression in curl (but browsers don't do that by default, as such the page is broken on most browsers) This was fixed in https://github.com/madler/zlib/commit/f9694097dd69354b03cb8af959094c7f260db0a1 I can confirm the fix works after rebuilding the with attached patch in place.
Confirmed on F27 as well. This breaks unifi AP captive portals, so bumping severity.
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Fedora 27 changed to end-of-life (EOL) status on 2018-11-30. Fedora 27 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.