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authorLeo Famulari <leo@famulari.name>2017-02-13 17:31:23 -0500
committerLeo Famulari <leo@famulari.name>2017-02-14 14:24:04 -0500
commit1ae04e35111f1455134943ee098f39e55aebc3eb (patch)
tree8b9873a076dc62fad9bbc987400546ec9400369d /gnu/packages/patches
parent30f420c155670e5e72fc46512fd941867a913559 (diff)
gnu: vim: Fix CVE-2017-5953.
* gnu/packages/patches/vim-CVE-2017-5953.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/vim.scm (vim)[source]: Use it.
Diffstat (limited to 'gnu/packages/patches')
-rw-r--r--gnu/packages/patches/vim-CVE-2017-5953.patch24
1 files changed, 24 insertions, 0 deletions
diff --git a/gnu/packages/patches/vim-CVE-2017-5953.patch b/gnu/packages/patches/vim-CVE-2017-5953.patch
new file mode 100644
index 0000000000..7b66f1bf16
--- /dev/null
+++ b/gnu/packages/patches/vim-CVE-2017-5953.patch
@@ -0,0 +1,24 @@
+Fix CVE-2017-5953:
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5953
+https://groups.google.com/forum/#!topic/vim_dev/t-3RSdEnrHY
+
+Patch adapted from upstream commit, correcting the transcription error
+in the bounds check:
+
+https://github.com/vim/vim/commit/399c297aa93afe2c0a39e2a1b3f972aebba44c9d
+
+diff --git a/src/spellfile.c b/src/spellfile.c
+index c7d87c6..8b1a3a6 100644
+--- a/src/spellfile.c
++++ b/src/spellfile.c
+@@ -1595,6 +1595,9 @@ spell_read_tree(
+ len = get4c(fd);
+ if (len < 0)
+ return SP_TRUNCERROR;
++ if (len >= 0x3fffffff)
++ /* Invalid length, multiply with sizeof(int) would overflow. */
++ return SP_FORMERROR;
+ if (len > 0)
+ {
+ /* Allocate the byte array. */