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authorLeo Famulari <leo@famulari.name>2016-12-07 18:51:27 -0500
committerLeo Famulari <leo@famulari.name>2016-12-08 13:53:36 -0500
commit57513498def74f8d95ef10df654d28e5a638a612 (patch)
tree8d9cacc02fe22acb12b0f9ff919718d595e4e3ad /gnu/packages/patches
parenta2c1dceadd2bf86ab17c70cd674bc98aec32a842 (diff)
downloadguix-57513498def74f8d95ef10df654d28e5a638a612.tar
guix-57513498def74f8d95ef10df654d28e5a638a612.tar.gz
gnu: tcsh: Fix out of bounds read.
* gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/shells.scm (tcsh)[replacement]: New field. (tcsh/fixed): New variable.
Diffstat (limited to 'gnu/packages/patches')
-rw-r--r--gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch31
1 files changed, 31 insertions, 0 deletions
diff --git a/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch b/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
new file mode 100644
index 0000000000..48c294f78e
--- /dev/null
+++ b/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
@@ -0,0 +1,31 @@
+Fix out-of-bounds read in c_substitute():
+
+http://seclists.org/oss-sec/2016/q4/612
+
+Patch copied from upstream source repository:
+
+https://github.com/tcsh-org/tcsh/commit/6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596
+
+From 6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596 Mon Sep 17 00:00:00 2001
+From: christos <christos>
+Date: Fri, 2 Dec 2016 16:59:28 +0000
+Subject: [PATCH] Fix out of bounds read (Brooks Davis) (reproduce by starting
+ tcsh and hitting tab at the prompt)
+
+---
+ ed.chared.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/ed.chared.c b/ed.chared.c
+index 1277e53..310393e 100644
+--- ed.chared.c
++++ ed.chared.c
+@@ -750,7 +750,7 @@ c_substitute(void)
+ /*
+ * If we found a history character, go expand it.
+ */
+- if (HIST != '\0' && *p == HIST)
++ if (p >= InputBuf && HIST != '\0' && *p == HIST)
+ nr_exp = c_excl(p);
+ else
+ nr_exp = 0;