diff options
| author |   Minjae Kim <flowergom@gmail.com> | 2021-09-27 19:44:30 +0900 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2021-09-28 17:57:33 +0100 |
| commit | d7fac573f1e1c9cd93181bce60df5666f5b5b03f (patch) | |
| tree | 6c0da5dfd487eae3b314d2767f47a0739ac1909a | |
| parent | 710fa373375beb977af704e17a925ed41c9a858d (diff) | |
| download | openembedded-core-d7fac573f1e1c9cd93181bce60df5666f5b5b03f.tar.gz | |
vim: fix CVE-2021-3778
vim is vulnerable to Heap-based Buffer Overflow
reference:
https://github.com/vim/vim/commit/65b605665997fad54ef39a93199e305af2fe4d7f
(From OE-Core rev: 494929c4cec21712884e13172c37efad7c908411)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
| -rw-r--r-- | meta/recipes-support/vim/files/CVE-2021-3778.patch | 46 | ||||
| -rw-r--r-- | meta/recipes-support/vim/vim.inc | 1 |
2 files changed, 47 insertions, 0 deletions
diff --git a/meta/recipes-support/vim/files/CVE-2021-3778.patch b/meta/recipes-support/vim/files/CVE-2021-3778.patch new file mode 100644 index 0000000000..769a7a07ac --- /dev/null +++ b/meta/recipes-support/vim/files/CVE-2021-3778.patch @@ -0,0 +1,46 @@ +From eb41373c8c88b0789e5cf04669d6116f9a199264 Mon Sep 17 00:00:00 2001 +From: Minjae Kim <flowergom@gmail.com> +Date: Sun, 26 Sep 2021 23:48:00 +0000 +Subject: [PATCH] patch 8.2.3409: reading beyond end of line with invalid utf-8 + character + +Problem: Reading beyond end of line with invalid utf-8 character. +Solution: Check for NUL when advancing. + +Upstream-Status: Accepted [https://github.com/vim/vim/commit/65b605665997fad54ef39a93199e305af2fe4d7f] +CVE: CVE-2021-3778 +Signed-off-by: Minjae Kim <flowergom@gmail.com> +--- + src/regexp_nfa.c | 3 ++- + src/testdir/test_regexp_utf8.vim | 7 +++++++ + 2 files changed, 9 insertions(+), 1 deletion(-) + +Index: git/src/regexp_nfa.c +=================================================================== +--- git.orig/src/regexp_nfa.c ++++ git/src/regexp_nfa.c +@@ -5455,7 +5455,8 @@ find_match_text(colnr_T startcol, int re + match = FALSE; + break; + } +- len2 += MB_CHAR2LEN(c2); ++ len2 += enc_utf8 ? utf_ptr2len(rex.line + col + len2) ++ : MB_CHAR2LEN(c2); + } + if (match + // check that no composing char follows +Index: git/src/testdir/test_regexp_utf8.vim +=================================================================== +--- git.orig/src/testdir/test_regexp_utf8.vim ++++ git/src/testdir/test_regexp_utf8.vim +@@ -215,3 +215,10 @@ func Test_optmatch_toolong() + set re=0 + endfunc + ++func Test_match_invalid_byte() ++ call writefile(0z630a.765d30aa0a.2e0a.790a.4030, 'Xinvalid') ++ new ++ source Xinvalid ++ bwipe! ++ call delete('Xinvalid') ++endfunc diff --git a/meta/recipes-support/vim/vim.inc b/meta/recipes-support/vim/vim.inc index 7e9225fbcb..db1e9caf4d 100644 --- a/meta/recipes-support/vim/vim.inc +++ b/meta/recipes-support/vim/vim.inc @@ -18,6 +18,7 @@ SRC_URI = "git://github.com/vim/vim.git \ file://no-path-adjust.patch \ file://racefix.patch \ file://b7081e135a16091c93f6f5f7525a5c58fb7ca9f9.patch \ + file://CVE-2021-3778.patch \ " SRCREV = "98056533b96b6b5d8849641de93185dd7bcadc44" |