populate_binsettings now returns a negative value on error, instead of a huge positive value. Both places which call this function have been updated to handle this change in its contract. The way populate_binsettings had been used prior to this change the huge positive values -- due to signed->unsigned conversion of the potentially negative result of nghttp2_pack_settings_payload which returns negative values on error -- are not possible. But only because http2.c currently always provides a large enough output buffer and provides H2 SETTINGS IVs which pass the verification logic inside nghttp2. If the verification logic were to change or if http2.c started passing in more IVs without increasing the output buffer size, the overflow could become reachable, and libcurl/curl might start leaking memory contents to servers/proxies... Closes #12101 |
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.circleci | ||
.github | ||
.reuse | ||
CMake | ||
docs | ||
include | ||
lib | ||
LICENSES | ||
m4 | ||
packages | ||
plan9 | ||
projects | ||
scripts | ||
src | ||
tests | ||
winbuild | ||
.azure-pipelines.yml | ||
.cirrus.yml | ||
.dcignore | ||
.dir-locals.el | ||
.git-blame-ignore-revs | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
acinclude.m4 | ||
appveyor.yml | ||
buildconf | ||
buildconf.bat | ||
CHANGES | ||
CMakeLists.txt | ||
configure.ac | ||
COPYING | ||
curl-config.in | ||
GIT-INFO | ||
libcurl.def | ||
libcurl.pc.in | ||
MacOSX-Framework | ||
Makefile.am | ||
Makefile.dist | ||
maketgz | ||
README | ||
README.md | ||
RELEASE-NOTES | ||
SECURITY.md |
Curl is a command-line tool for transferring data specified with URL syntax. Find out how to use curl by reading the curl.1 man page or the MANUAL document. Find out how to install Curl by reading the INSTALL document.
libcurl is the library curl is using to do its job. It is readily available to be used by your software. Read the libcurl.3 man page to learn how.
You can find answers to the most frequent questions we get in the FAQ document.
Study the COPYING file for distribution terms.
Contact
If you have problems, questions, ideas or suggestions, please contact us by posting to a suitable mailing list.
All contributors to the project are listed in the THANKS document.
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For commercial support, maybe private and dedicated help with your problems or applications using (lib)curl visit the support page.
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Visit the curl website for the latest news and downloads.
Git
To download the latest source from the Git server, do this:
git clone https://github.com/curl/curl.git
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Report suspected security problems via our HackerOne page and not in public.
Notice
Curl contains pieces of source code that is Copyright (c) 1998, 1999 Kungliga Tekniska Högskolan. This notice is included here to comply with the distribution terms.
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