NetCube-Systems-Austria/kumquat-buildroot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

package/libfribidi: add upstream security fix

Browse Source 
Fixes the following security issue:

- CVE-2019-18397: GNU FriBidi stack buffer overflow >= 1.0.0

For more details, see the advisory:
https://www.openwall.com/lists/oss-security/2019/11/08/5

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Peter Korsgaard 2019-11-08 17:00:29 +01:00 committed by Thomas Petazzoni
parent 2c543b4f4c
commit bc1aec413b
1 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
package/libfribidi/0001-Truncate-isolate_level-to-FRIBIDI_BIDI_MAX_EXPLICIT_.patch Normal file
View File

@ -0,0 +1,30 @@
From 034c6e9a1d296286305f4cfd1e0072b879f52568 Mon Sep 17 00:00:00 2001
From: Dov Grobgeld <dov.grobgeld@gmail.com>
Date: Thu, 24 Oct 2019 09:37:29 +0300
Subject: [PATCH] Truncate isolate_level to FRIBIDI_BIDI_MAX_EXPLICIT_LEVEL
CVE-2019-18397
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
lib/fribidi-bidi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/fribidi-bidi.c b/lib/fribidi-bidi.c
index 6c84392..d384878 100644
--- a/lib/fribidi-bidi.c
+++ b/lib/fribidi-bidi.c
@@ -747,7 +747,9 @@ fribidi_get_par_embedding_levels_ex (
}
RL_LEVEL (pp) = level;
- RL_ISOLATE_LEVEL (pp) = isolate_level++;
+ RL_ISOLATE_LEVEL (pp) = isolate_level;
+ if (isolate_level < FRIBIDI_BIDI_MAX_EXPLICIT_LEVEL-1)
+ isolate_level++;
base_level_per_iso_level[isolate_level] = new_level;
if (!FRIBIDI_IS_NEUTRAL (override))
--
2.20.1