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Description: Fix a RCE vulnerability on the bookmark command
Newsbeuter didn't properly escape the title and description fields before
passing them to the bookmarking program which could lead to remote code
execution using the shells command substitution functionality (e.g. "$()", ``,
etc)
Origin: upstream, https://github.com/akrennmair/newsbeuter/commit/96e9506ae9e252c548665152d1b8968297128307
Last-Update: 2017-08-18
--- newsbeuter-2.8.orig/src/controller.cpp
+++ newsbeuter-2.8/src/controller.cpp
@@ -1280,9 +1280,10 @@ std::string controller::bookmark(const s
std::string bookmark_cmd = cfg.get_configvalue("bookmark-cmd");
bool is_interactive = cfg.get_configvalue_as_bool("bookmark-interactive");
if (bookmark_cmd.length() > 0) {
- std::string cmdline = utils::strprintf("%s '%s' %s %s",
- bookmark_cmd.c_str(), utils::replace_all(url,"'", "%27").c_str(),
- stfl::quote(title).c_str(), stfl::quote(description).c_str());
+ std::string cmdline = utils::strprintf("%s '%s' '%s' '%s'",
+ bookmark_cmd.c_str(), utils::replace_all(url,"'", "%27").c_str(),
+ utils::replace_all(title,"'", "%27").c_str(),
+ utils::replace_all(description,"'", "%27").c_str());
LOG(LOG_DEBUG, "controller::bookmark: cmd = %s", cmdline.c_str());
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