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authorAnders Kaseorg <andersk@mit.edu>2020-01-01 16:29:34 -0800
committerFrederik Rietdijk <freddyrietdijk@fridh.nl>2020-01-15 09:47:03 +0100
commit3cd8ce3bce1e3d89b21caa0d3ad458193f5179ba (patch)
tree7a1f1889004dce271903d69dce5c1f5a2cf92b07 /pkgs/tools/security/neopg
parent2e5051e2235f93829f0d6531ace21e87f2a486a4 (diff)
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treewide: Fix unsafe concatenation of $LD_LIBRARY_PATH
Naive concatenation of $LD_LIBRARY_PATH can result in an empty
colon-delimited segment; this tells glibc to load libraries from the
current directory, which is definitely wrong, and may be a security
vulnerability if the current directory is untrusted.  (See #67234, for
example.)  Fix this throughout the tree.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Diffstat (limited to 'pkgs/tools/security/neopg')
-rw-r--r--pkgs/tools/security/neopg/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/tools/security/neopg/default.nix b/pkgs/tools/security/neopg/default.nix
index 5e26bcf6759..c58772346ee 100644
--- a/pkgs/tools/security/neopg/default.nix
+++ b/pkgs/tools/security/neopg/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   dontUseCmakeBuildDir = true;
 
   preCheck = ''
-    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$(pwd)/3rdparty/googletest/googletest:$(pwd)/neopg
+    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}$(pwd)/3rdparty/googletest/googletest:$(pwd)/neopg
   '';
 
   meta = with stdenv.lib; {