mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-25 22:08:16 -05:00
4d85391059
* gnu/packages/patches/tidy-CVE-2015-5522+5523.patch: New file. * gnu-system.am (dist_patch_DATA): Add it. * gnu/packages/web.scm (tidy)[source]: Add patch.
36 lines
1.4 KiB
Diff
36 lines
1.4 KiB
Diff
Copied from Debian.
|
|
|
|
From c18f27a58792f7fbd0b30a0ff50d6b40a82f940d Mon Sep 17 00:00:00 2001
|
|
From: Geoff McLane <ubuntu@geoffair.info>
|
|
Date: Wed, 3 Jun 2015 20:26:03 +0200
|
|
Subject: [PATCH] Issue #217 - avoid len going negative, ever...
|
|
|
|
---
|
|
src/lexer.c | 8 +++++---
|
|
1 file changed, 5 insertions(+), 3 deletions(-)
|
|
|
|
diff --git a/src/lexer.c b/src/lexer.c
|
|
index 376a3d8..664f806 100644
|
|
--- a/src/lexer.c
|
|
+++ b/src/lexer.c
|
|
@@ -3739,16 +3740,17 @@ static tmbstr ParseValue( TidyDocImpl* doc, ctmbstr name,
|
|
/* and prompts attributes unless --literal-attributes is set to yes */
|
|
/* #994841 - Whitespace is removed from value attributes */
|
|
|
|
- if (munge &&
|
|
+ /* Issue #217 - Also only if/while (len > 0) - MUST NEVER GO NEGATIVE! */
|
|
+ if ((len > 0) && munge &&
|
|
TY_(tmbstrcasecmp)(name, "alt") &&
|
|
TY_(tmbstrcasecmp)(name, "title") &&
|
|
TY_(tmbstrcasecmp)(name, "value") &&
|
|
TY_(tmbstrcasecmp)(name, "prompt"))
|
|
{
|
|
- while (TY_(IsWhite)(lexer->lexbuf[start+len-1]))
|
|
+ while (TY_(IsWhite)(lexer->lexbuf[start+len-1]) && (len > 0))
|
|
--len;
|
|
|
|
- while (TY_(IsWhite)(lexer->lexbuf[start]) && start < len)
|
|
+ while (TY_(IsWhite)(lexer->lexbuf[start]) && (start < len) && (len > 0))
|
|
{
|
|
++start;
|
|
--len;
|