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-rw-r--r--apt-pkg/acquire-method.cc6
1 files changed, 6 insertions, 0 deletions
diff --git a/apt-pkg/acquire-method.cc b/apt-pkg/acquire-method.cc
index 746c553f1..d665844a3 100644
--- a/apt-pkg/acquire-method.cc
+++ b/apt-pkg/acquire-method.cc
@@ -424,6 +424,12 @@ void pkgAcqMethod::Status(const char *Format,...)
* the worker will enqueue again later on to the right queue */
void pkgAcqMethod::Redirect(const string &NewURI)
{
+ if (NewURI.find_first_not_of(" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~") != std::string::npos)
+ {
+ _error->Error("SECURITY: URL redirect target contains control characters, rejecting.");
+ Fail();
+ return;
+ }
std::cout << "103 Redirect\nURI: " << Queue->Uri << "\n"
<< "New-URI: " << NewURI << "\n"
<< "\n" << std::flush;