From 369dcccdfa6336e5a873d6d63705cfbe04c55727 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 7 May 2018 15:14:45 +0200 Subject: [PATCH] Don't leak temporary file on failed multi-file ed-style patch The previous fix worked fine with single-file ed-style patches, but would still leak temporary files in the case of multi-file ed-style patch. Fix that case as well, and extend the test case to check for it. * src/patch.c (main): Unlink TMPEDNAME if needed before moving to the next file in a patch. This closes bug #53820: https://savannah.gnu.org/bugs/index.php?53820 Fixes: 123eaff0d5d1 ("Fix arbitrary command execution in ed-style patches (CVE-2018-1000156)") Fixes: 19599883ffb6 ("Don't leak temporary file on failed ed-style patch") --- src/patch.c | 1 + tests/ed-style | 31 +++++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/src/patch.c b/src/patch.c index 9146597..81c7a02 100644 --- a/src/patch.c +++ b/src/patch.c @@ -236,6 +236,7 @@ main (int argc, char **argv) } remove_if_needed (TMPOUTNAME, &TMPOUTNAME_needs_removal); } + remove_if_needed (TMPEDNAME, &TMPEDNAME_needs_removal); if (! skip_rest_of_patch && ! file_type) { diff --git a/tests/ed-style b/tests/ed-style index 6b6ef9d..504e6e5 100644 --- a/tests/ed-style +++ b/tests/ed-style @@ -38,3 +38,34 @@ EOF check 'cat foo' < ed3.diff < baz <