diff options
| author | Tatsuya Kinoshita <tats@debian.org> | 2018-01-26 09:46:30 +0000 |
|---|---|---|
| committer | Tatsuya Kinoshita <tats@debian.org> | 2018-01-26 09:46:30 +0000 |
| commit | 70dc2f8597b230ec731e9cbe07b1ee619f580355 (patch) | |
| tree | 8c2adf0485c74faa037c502aa8258ded9c27c886 /debian/patches/955_tbl-indent.patch | |
| parent | Debian release 0.5.3-34 (diff) | |
| download | w3m-70dc2f8597b230ec731e9cbe07b1ee619f580355.tar.gz w3m-70dc2f8597b230ec731e9cbe07b1ee619f580355.zip | |
New patch 955_tbl-indent.patch to fix stack overflow [CVE-2018-6196]
Diffstat (limited to '')
| -rw-r--r-- | debian/patches/955_tbl-indent.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/debian/patches/955_tbl-indent.patch b/debian/patches/955_tbl-indent.patch new file mode 100644 index 0000000..9252669 --- /dev/null +++ b/debian/patches/955_tbl-indent.patch @@ -0,0 +1,24 @@ +Subject: Prevent negative indent value in feed_table_block_tag() +From: Tatsuya Kinoshita <tats@debian.org> +Bug-Debian: https://github.com/tats/w3m/issues/88 [CVE-2018-6196] +Origin: https://salsa.debian.org/debian/w3m/commit/8354763b90490d4105695df52674d0fcef823e92 + +diff --git a/table.c b/table.c +index 221db92..4f193e1 100644 +--- a/table.c ++++ b/table.c +@@ -2356,10 +2356,14 @@ feed_table_block_tag(struct table *tbl, + if (mode->indent_level < MAX_INDENT_LEVEL) + tbl->indent -= INDENT_INCR; + } ++ if (tbl->indent < 0) ++ tbl->indent = 0; + offset = tbl->indent; + if (cmd == HTML_DT) { + if (mode->indent_level > 0 && mode->indent_level <= MAX_INDENT_LEVEL) + offset -= INDENT_INCR; ++ if (offset < 0) ++ offset = 0; + } + if (tbl->indent > 0) { + check_minimum0(tbl, 0); |