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Bug#895595: marked as done (lighttpd: Segmentation fault on HTTP chunked input when mod_fastcgi is enabled)

Your message dated Mon, 4 Feb 2019 04:02:38 -0500
with message-id <20190204090238.GA7517@i5.lan>
and subject line 895595-done
has caused the Debian Bug report #895595,
regarding lighttpd: Segmentation fault on HTTP chunked input when mod_fastcgi is enabled
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
895595: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=895595
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Source: lighttpd
Version: 1.4.45-1
Severity: important

Dear Maintainer,

While serving Ookla Speedtest HTTP legacy fallback service with lighttpd, the lighttpd 1.4.45-1 (latest stable) segfaults several times an hour.

Apr 12 15:30:18 systemd[1]: lighttpd.service: Main process exited, code=killed, status=11/SEGV
Apr 12 15:30:18 systemd[1]: lighttpd.service: Unit entered failed state.
Apr 12 15:30:18 systemd[1]: lighttpd.service: Failed with result 'signal'.
Apr 12 15:30:18 systemd[1]: lighttpd.service: Service hold-off time over, scheduling restart.

(request.c.436) fd: 9 request-len: 367 \nPOST /speedtest/upload.php?x=1523552422398. HTTP/1.1\r\nAccept-Encoding: identity\r\nContent-Type: application/x-www-form-urlencoded\r\nTransfer-Encoding: chunked\r\n\r\n
(log.c.217) server started


Root cause looks to be Lighttpd bug, which has been resolved in 1.4.46:
https://redmine.lighttpd.net/issues/2822


If the speedtest-cli client is performing the common test towards the Lighttpd, then after several POST messages lighttpd instance crashes with SEGV.

2018-04-13 10:00:19: (request.c.436) fd: 16 request-len: 367 \nPOST /speedtest/upload.php?x=1523602817877. HTTP/1.1\r\nAccept-Encoding: identity\r\nContent-Type: application/x-www-form-urlencoded\r\nTransfer-Encoding: chunked\r\nHost: speedtest.host.url\r\nUser-Agent: Mozilla/5.0 (FreeBSD; U; 64bit; en-us) Python/3.6.5 (KHTML, like Gecko) speedtest-cli/1.0.7\r\nCache-Control: no-cache\r\nConnection: close\r\n\r\n 
2018-04-13 10:00:19: (response.c.350) -- splitting Request-URI 
2018-04-13 10:00:19: (response.c.351) Request-URI     :  /speedtest/upload.php?x=1523602817877. 
2018-04-13 10:00:19: (response.c.352) URI-scheme      :  http 
2018-04-13 10:00:19: (response.c.353) URI-authority   :  speedtest.host.url
2018-04-13 10:00:19: (response.c.354) URI-path (raw)  :  /speedtest/upload.php 
2018-04-13 10:00:19: (response.c.355) URI-path (clean):  /speedtest/upload.php 
2018-04-13 10:00:19: (response.c.356) URI-query       :  x=1523602817877. 
2018-04-13 10:00:19: (mod_access.c.148) -- mod_access_uri_handler called 
2018-04-13 10:00:19: (response.c.490) -- before doc_root 
2018-04-13 10:00:19: (response.c.491) Doc-Root     : /var/www/html 
2018-04-13 10:00:19: (response.c.492) Rel-Path     : /speedtest/upload.php 
2018-04-13 10:00:19: (response.c.493) Path         :  
2018-04-13 10:00:19: (response.c.542) -- after doc_root 
2018-04-13 10:00:19: (response.c.543) Doc-Root     : /var/www/html 
2018-04-13 10:00:19: (response.c.544) Rel-Path     : /speedtest/upload.php 
2018-04-13 10:00:19: (response.c.545) Path         : /var/www/html/speedtest/upload.php 
2018-04-13 10:00:19: (response.c.562) -- logical -> physical 
2018-04-13 10:00:19: (response.c.563) Doc-Root     : /var/www/html 
2018-04-13 10:00:19: (response.c.564) Basedir      : /var/www/html 
2018-04-13 10:00:19: (response.c.565) Rel-Path     : /speedtest/upload.php 
2018-04-13 10:00:19: (response.c.566) Path         : /var/www/html/speedtest/upload.php 
2018-04-13 10:00:19: (response.c.583) -- handling physical path 
2018-04-13 10:00:19: (response.c.584) Path         : /var/www/html/speedtest/upload.php 
2018-04-13 10:00:19: (response.c.591) -- file found 
2018-04-13 10:00:19: (response.c.592) Path         : /var/www/html/speedtest/upload.php 
2018-04-13 10:00:19: (response.c.753) -- handling subrequest 
2018-04-13 10:00:19: (response.c.754) Path         : /var/www/html/speedtest/upload.php 
2018-04-13 10:00:19: (mod_access.c.148) -- mod_access_uri_handler called 
2018-04-13 10:00:19: (mod_fastcgi.c.3500) handling it in mod_fastcgi 
2018-04-13 10:00:19: (connections-glue.c.403) chunked data size too large -> 400 
2018-04-13 10:00:19: (response.c.122) Response-Header: \nHTTP/1.1 400 Bad Request\r\nContent-Type: text/html\r\nContent-Length: 349\r\nConnection: close\r\nDate: Fri, 13 Apr 2018 07:00:19 GMT\r\nServer: lighttpd/1.4.45\r\n\r\n 
2018-04-13 10:00:19: (request.c.436) fd: 18 request-len: 367 \nPOST /speedtest/upload.php?x=1523602817933. HTTP/1.1\r\nAccept-Encoding: identity\r\nContent-Type: application/x-www-form-urlencoded\r\nTransfer-Encoding: chunked\r\nHost: speedtest.host.url\r\nUser-Agent: Mozilla/5.0 (FreeBSD; U; 64bit; en-us) Python/3.6.5 (KHTML, like Gecko) speedtest-cli/1.0.7\r\nCache-Control: no-cache\r\nConnection: close\r\n\r\n 
2018-04-13 10:00:19: (response.c.350) -- splitting Request-URI 
2018-04-13 10:00:19: (response.c.351) Request-URI     :  /speedtest/upload.php?x=1523602817933. 
2018-04-13 10:00:19: (response.c.352) URI-scheme      :  http 
2018-04-13 10:00:19: (response.c.353) URI-authority   :  speedtest.host.url
2018-04-13 10:00:19: (response.c.354) URI-path (raw)  :  /speedtest/upload.php 
2018-04-13 10:00:19: (response.c.355) URI-path (clean):  /speedtest/upload.php 
2018-04-13 10:00:19: (response.c.356) URI-query       :  x=1523602817933. 
2018-04-13 10:00:19: (mod_access.c.148) -- mod_access_uri_handler called 
2018-04-13 10:00:19: (response.c.490) -- before doc_root 
2018-04-13 10:00:19: (response.c.491) Doc-Root     : /var/www/html 
2018-04-13 10:00:19: (response.c.492) Rel-Path     : /speedtest/upload.php 
2018-04-13 10:00:19: (response.c.493) Path         :  
2018-04-13 10:00:19: (response.c.542) -- after doc_root 
2018-04-13 10:00:19: (response.c.543) Doc-Root     : /var/www/html 
2018-04-13 10:00:19: (response.c.544) Rel-Path     : /speedtest/upload.php 
2018-04-13 10:00:19: (response.c.545) Path         : /var/www/html/speedtest/upload.php 
2018-04-13 10:00:19: (response.c.562) -- logical -> physical 
2018-04-13 10:00:19: (response.c.563) Doc-Root     : /var/www/html 
2018-04-13 10:00:19: (response.c.564) Basedir      : /var/www/html 
2018-04-13 10:00:19: (response.c.565) Rel-Path     : /speedtest/upload.php 
2018-04-13 10:00:19: (response.c.566) Path         : /var/www/html/speedtest/upload.php 
2018-04-13 10:00:19: (response.c.583) -- handling physical path 
2018-04-13 10:00:19: (response.c.584) Path         : /var/www/html/speedtest/upload.php 
2018-04-13 10:00:19: (response.c.591) -- file found 
2018-04-13 10:00:19: (response.c.592) Path         : /var/www/html/speedtest/upload.php 
2018-04-13 10:00:19: (response.c.753) -- handling subrequest 
2018-04-13 10:00:19: (response.c.754) Path         : /var/www/html/speedtest/upload.php 
2018-04-13 10:00:19: (mod_access.c.148) -- mod_access_uri_handler called 
2018-04-13 10:00:19: (mod_fastcgi.c.3500) handling it in mod_fastcgi 
2018-04-13 10:00:19: (log.c.217) server started 



-- System Information:
Debian Release: 9.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-6-amd64 (SMP w/4 CPU cores)
Locale: LANG=et_EE.UTF-8, LC_CTYPE=et_EE.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

--- End Message ---
--- Begin Message --- 
Package: lighttpd
Version: lighttpd/1.4.49-1

fixed upstream in lighttpd 1.4.46

--- End Message ---
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