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| author | Tatsuya Kinoshita <tats@debian.org> | 2016-08-29 10:28:41 +0000 |
|---|---|---|
| committer | Tatsuya Kinoshita <tats@debian.org> | 2016-11-19 05:16:22 +0000 |
| commit | b8eb0d416c32dbc06dba05af0f367396a40ee03f (patch) | |
| tree | 5b4860c623ab2c61adde8c2ba9faf5e14507ae6b /anchor.c | |
| parent | Prevent segfault with malformed table_alt (diff) | |
| download | w3m-b8eb0d416c32dbc06dba05af0f367396a40ee03f.tar.gz w3m-b8eb0d416c32dbc06dba05af0f367396a40ee03f.zip | |
Prevent segfault due to buffer overflows in addMultirowsForm
Bug-Debian: https://github.com/tats/w3m/issues/21 [CVE-2016-9425]
Bug-Debian: https://github.com/tats/w3m/issues/26 [CVE-2016-9428]
Origin: https://anonscm.debian.org/cgit/collab-maint/w3m.git/commit/?id=4e464819dd360ffd3d58fa2a89216fe413cfcc74
Diffstat (limited to 'anchor.c')
| -rw-r--r-- | anchor.c | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -687,6 +687,8 @@ addMultirowsForm(Buffer *buf, AnchorList *al) a->hseq = a_form.hseq; a->y = a_form.y; a->end.pos = pos + ecol - col; + if (pos < 1 || a->end.pos >= l->size) + continue; l->lineBuf[pos - 1] = '['; l->lineBuf[a->end.pos] = ']'; for (k = pos; k < a->end.pos; k++) |