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38/376: Fix security hole in ‘nix-store --serve’


From: Ludovic Courts
Subject: 38/376: Fix security hole in ‘nix-store --serve’
Date: Wed, 28 Jan 2015 22:03:53 +0000

civodul pushed a commit to tag 1.8
in repository guix.

commit 2c3a8f787ba9da49feafdec4022534184e0a96a3
Author: Eelco Dolstra <address@hidden>
Date:   Thu Jul 10 11:46:01 2014 +0200

    Fix security hole in ‘nix-store --serve’
    
    Since it didn't check that the path received from the client is a
    store path, the client could dump any path in the file system.
---
 src/nix-store/nix-store.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/nix-store/nix-store.cc b/src/nix-store/nix-store.cc
index 4fee725..5bcb82f 100644
--- a/src/nix-store/nix-store.cc
+++ b/src/nix-store/nix-store.cc
@@ -923,7 +923,7 @@ static void opServe(Strings opFlags, Strings opArgs)
             }
             break;
         case cmdSubstitute:
-            dumpPath(readString(in), out);
+            dumpPath(readStorePath(in), out);
             break;
         default:
             throw Error(format("unknown serve command `%1%'") % cmd);



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