opensuse-su-2021:1424-1
Vulnerability from csaf_opensuse
Published
2021-10-31 15:08
Modified
2021-10-31 15:08
Summary
Security update for civetweb

Notes

Title of the patch
Security update for civetweb
Description of the patch
This update for civetweb fixes the following issues: Version 1.15: * boo#1191938 / CVE-2020-27304: missing uploaded filepath validation in the default form-based file upload mechanism * New configuration for URL decoding * Sanitize filenames in handle form * Example “embedded_c.c”: Do not overwrite files (possible security issue) * Remove obsolete examples * Remove “experimental” label for some features * Remove MG_LEGACY_INTERFACE that have been declared obsolete in 2017 or earlier * Modifications to build scripts, required due to changes in the test environment * Unix domain socket support fixed * Fixes for NO_SSL_DL * Fixes for some warnings / static code analysis Version 1.14: * Change SSL default setting to use TLS 1.2 as minimum (set config if you need an earlier version) * Add local_uri_raw field (not sanitized URI) to request_info * Additional API functions and a callback after closing connections * Allow mbedTLS as OpenSSL alternative (basic functionality) * Add OpenSSL 3.0 support (OpenSSL 3.0 Alpha 13) * Support UNIX/Linux domain sockets * Fuzz tests and ossfuzz integration * Compression for websockets * Restructure some source files * Improve documentation * Fix HTTP range requests * Add some functions for Lua scripts/LSP * Build system specific fixes (CMake, MinGW) * Update 3rd party components (Lua, lfs, sqlite) * Allow Lua background script to use timers, format and filter logs * Remove WinCE code * Update version number Version 1.13: * Add arguments for CGI interpreters * Support multiple CGi interpreters * Buffering HTTP response headers, including API functions mg_response_header_* in C and Lua * Additional C API functions * Fix some memory leaks * Extended use of atomic operations (e.g., for server stats) * Add fuzz tests * Set OpenSSL 1.1 API as default (from 1.0) * Add Lua 5.4 support and deprecate Lua 5.1 * Provide additional Lua API functions * Fix Lua websocket memory leak when closing the server * Remove obsolete 'file in memory' implementation * Improvements and fixes in documentation * Fixes from static source code analysis * Additional unit tests * Various small bug fixes * Experimental support for some HTTP2 features (not ready for production) * Experimental support for websocket compression * Remove legacy interfaces declared obsolete since more than 3 years Version 1.12 * See https://github.com/civetweb/civetweb/releases/tag/v1.12 for detailed changelog
Patchnames
openSUSE-2021-1424
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
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        "text": "This update for civetweb fixes the following issues:\n\nVersion 1.15:\n\n* boo#1191938 / CVE-2020-27304: missing uploaded filepath validation in the default form-based file upload mechanism\n* New configuration for URL decoding\n* Sanitize filenames in handle form\n* Example \u201cembedded_c.c\u201d: Do not overwrite files (possible security issue)\n* Remove obsolete examples\n* Remove \u201cexperimental\u201d label for some features\n* Remove MG_LEGACY_INTERFACE that have been declared obsolete in 2017 or earlier\n* Modifications to build scripts, required due to changes in the test environment\n* Unix domain socket support fixed\n* Fixes for NO_SSL_DL\n* Fixes for some warnings / static code analysis\n\nVersion 1.14:\n\n* Change SSL default setting to use TLS 1.2 as minimum (set config if you need an earlier version)\n* Add local_uri_raw field (not sanitized URI) to request_info\n* Additional API functions and a callback after closing connections\n* Allow mbedTLS as OpenSSL alternative (basic functionality)\n* Add OpenSSL 3.0 support (OpenSSL 3.0 Alpha 13)\n* Support UNIX/Linux domain sockets\n* Fuzz tests and ossfuzz integration\n* Compression for websockets\n* Restructure some source files\n* Improve documentation\n* Fix HTTP range requests\n* Add some functions for Lua scripts/LSP\n* Build system specific fixes (CMake, MinGW)\n* Update 3rd party components (Lua, lfs, sqlite)\n* Allow Lua background script to use timers, format and filter logs\n* Remove WinCE code\n* Update version number \n\nVersion 1.13:\n\n* Add arguments for CGI interpreters\n* Support multiple CGi interpreters\n* Buffering HTTP response headers, including API functions mg_response_header_* in C and Lua\n* Additional C API functions\n* Fix some memory leaks\n* Extended use of atomic operations (e.g., for server stats)\n* Add fuzz tests\n* Set OpenSSL 1.1 API as default (from 1.0)\n* Add Lua 5.4 support and deprecate Lua 5.1\n* Provide additional Lua API functions\n* Fix Lua websocket memory leak when closing the server\n* Remove obsolete \u0027file in memory\u0027 implementation\n* Improvements and fixes in documentation\n* Fixes from static source code analysis\n* Additional unit tests\n* Various small bug fixes\n* Experimental support for some HTTP2 features (not ready for production)\n* Experimental support for websocket compression\n* Remove legacy interfaces declared obsolete since more than 3 years\n\nVersion 1.12 \n\n* See https://github.com/civetweb/civetweb/releases/tag/v1.12 for detailed changelog\n  \n",
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          "text": "The CivetWeb web library does not validate uploaded filepaths when running on an OS other than Windows, when using the built-in HTTP form-based file upload mechanism, via the mg_handle_form_request API. Web applications that use the file upload form handler, and use parts of the user-controlled filename in the output path, are susceptible to directory traversal",
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}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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