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HAProxy - Load balancer
cdca48b88c
This bug arrived with this commit:
MINOR: quic: implement cc-algo server keyword
where <srv> keywords list with a missing array NULL termination inside was
introduced to parse the QUIC backend CC algorithms.
Detected by ASAN during ssl/add_ssl_crt-list.vtc execution as follows:
*** h1 debug|==4066081==ERROR: AddressSanitizer: global-buffer-overflow on address 0x5562e31dedb8 at pc 0x5562e298951f bp 0x7ffe9f9f2b40 sp 0x7ffe9f9f2b38
*** h1 debug|READ of size 8 at 0x5562e31dedb8 thread T0
**** dT 0.173
*** h1 debug| #0 0x5562e298951e in srv_find_kw src/server.c:789
*** h1 debug| #1 0x5562e2989630 in _srv_parse_kw src/server.c:3847
*** h1 debug| #2 0x5562e299db1f in parse_server src/server.c:4024
*** h1 debug| #3 0x5562e2c86ea4 in cfg_parse_listen src/cfgparse-listen.c:593
*** h1 debug| #4 0x5562e2b0ede9 in parse_cfg src/cfgparse.c:2708
*** h1 debug| #5 0x5562e2c47d48 in read_cfg src/haproxy.c:1077
*** h1 debug| #6 0x5562e2682055 in main src/haproxy.c:3366
*** h1 debug| #7 0x7ff3ff867249 in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
*** h1 debug| #8 0x7ff3ff867304 in __libc_start_main_impl ../csu/libc-start.c:360
*** h1 debug| #9 0x5562e26858d0 in _start (/home/flecaille/src/haproxy/haproxy+0x2638d0)
*** h1 debug|
*** h1 debug|0x5562e31dedb8 is located 40 bytes to the left of global variable 'bind_kws' defined in 'src/cfgparse-quic.c:255:28' (0x5562e31dede0) of size 120
*** h1 debug|0x5562e31dedb8 is located 0 bytes to the right of global variable 'srv_kws' defined in 'src/cfgparse-quic.c:264:27' (0x5562e31ded80) of size 56
*** h1 debug|SUMMARY: AddressSanitizer: global-buffer-overflow src/server.c:789 in srv_find_kw
*** h1 debug|Shadow bytes around the buggy address:
*** h1 debug| 0x0aacdc633d60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*** h1 debug| 0x0aacdc633d70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*** h1 debug| 0x0aacdc633d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*** h1 debug| 0x0aacdc633d90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*** h1 debug| 0x0aacdc633da0: 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9
*** h1 debug|=>0x0aacdc633db0: 00 00 00 00 00 00 00[f9]f9 f9 f9 f9 00 00 00 00
*** h1 debug| 0x0aacdc633dc0: 00 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9 f9
*** h1 debug| 0x0aacdc633dd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*** h1 debug| 0x0aacdc633de0: 00 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9 f9 f9
*** h1 debug| 0x0aacdc633df0: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
*** h1 debug| 0x0aacdc633e00: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
*** h1 debug|Shadow byte legend (one shadow byte represents 8 application bytes):
This should be backported where the commit above is supposed to be backported.
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| CONTRIBUTING | ||
| INSTALL | ||
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| Makefile | ||
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HAProxy
HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
Installation
The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.
Getting help
The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.
The issue tracker is only for bug reports or feature requests.
Documentation
The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.
Please refer to the following files depending on what you're looking for:
- INSTALL for instructions on how to build and install HAProxy
- BRANCHES to understand the project's life cycle and what version to use
- LICENSE for the project's license
- CONTRIBUTING for the process to follow to submit contributions
The more detailed documentation is located into the doc/ directory:
- doc/intro.txt for a quick introduction on HAProxy
- doc/configuration.txt for the configuration's reference manual
- doc/lua.txt for the Lua's reference manual
- doc/SPOE.txt for how to use the SPOE engine
- doc/network-namespaces.txt for how to use network namespaces under Linux
- doc/management.txt for the management guide
- doc/regression-testing.txt for how to use the regression testing suite
- doc/peers.txt for the peers protocol reference
- doc/coding-style.txt for how to adopt HAProxy's coding style
- doc/internals for developer-specific documentation (not all up to date)
License
HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.