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libwmf: patch CVE-2015-0848 and CVE-2015-4588

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Details:
https://nvd.nist.gov/vuln/detail/CVE-2015-0848
https://nvd.nist.gov/vuln/detail/CVE-2015-4588

Pick the commit that mentions the CVE IDs explicitly.
The same patch fixes both vulnerabilities.

Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Gyorgy Sarvari
2025-11-18 11:31:25 +01:00
committed by Anuj Mittal
parent 786bad8097
commit dbc98a00eb
2 changed files with 137 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-oe/recipes-extended/libwmf/libwmf/CVE-2015-0848-CVE-2015-4588.patch
+135
View File
@@ -0,0 +1,135 @@
From f42e4f4505b07278f4baccddfc1f47059ae4f931 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
Date: Wed, 8 Aug 2018 13:59:18 +0100
Subject: [PATCH] CVE-2015-0848+CVE-2015-4588
CVE: CVE-2015-0848 CVE-2015-4588
Upstream-Status: Backport [https://github.com/caolanm/libwmf/commit/879d6bffa6dd21b8c0e9ec3b5aa31b6ae090ef83]
Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
---
src/ipa/ipa.h | 2 +-
src/ipa/ipa/bmp.h | 38 +++++++++++++++++++++++++++++++-------
2 files changed, 32 insertions(+), 8 deletions(-)
diff --git a/src/ipa/ipa.h b/src/ipa/ipa.h
index d050a7e..3003540 100644
--- a/src/ipa/ipa.h
+++ b/src/ipa/ipa.h
@@ -48,7 +48,7 @@ static int ReadBlobByte (BMPSource*);
static unsigned short ReadBlobLSBShort (BMPSource*);
static unsigned long ReadBlobLSBLong (BMPSource*);
static long TellBlob (BMPSource*);
-static void DecodeImage (wmfAPI*,wmfBMP*,BMPSource*,unsigned int,unsigned char*);
+static int DecodeImage (wmfAPI*,wmfBMP*,BMPSource*,unsigned int,unsigned char*);
static void ReadBMPImage (wmfAPI*,wmfBMP*,BMPSource*);
static int ExtractColor (wmfAPI*,wmfBMP*,wmfRGB*,unsigned int,unsigned int);
static void SetColor (wmfAPI*,wmfBMP*,wmfRGB*,unsigned char,unsigned int,unsigned int);
diff --git a/src/ipa/ipa/bmp.h b/src/ipa/ipa/bmp.h
index 29eee34..7751a36 100644
--- a/src/ipa/ipa/bmp.h
+++ b/src/ipa/ipa/bmp.h
@@ -859,7 +859,7 @@ static long TellBlob (BMPSource* src)
%
%
*/
-static void DecodeImage (wmfAPI* API,wmfBMP* bmp,BMPSource* src,unsigned int compression,unsigned char* pixels)
+static int DecodeImage (wmfAPI* API,wmfBMP* bmp,BMPSource* src,unsigned int compression,unsigned char* pixels)
{ int byte;
int count;
int i;
@@ -870,12 +870,14 @@ static void DecodeImage (wmfAPI* API,wmfBMP* bmp,BMPSource* src,unsigned int com
U32 u;
unsigned char* q;
+ unsigned char* end;
for (u = 0; u < ((U32) bmp->width * (U32) bmp->height); u++) pixels[u] = 0;
byte = 0;
x = 0;
q = pixels;
+ end = pixels + bmp->width * bmp->height;
for (y = 0; y < bmp->height; )
{ count = ReadBlobByte (src);
@@ -884,7 +886,10 @@ static void DecodeImage (wmfAPI* API,wmfBMP* bmp,BMPSource* src,unsigned int com
{ /* Encoded mode. */
byte = ReadBlobByte (src);
for (i = 0; i < count; i++)
- { if (compression == 1)
+ {
+ if (q == end)
+ return 0;
+ if (compression == 1)
{ (*(q++)) = (unsigned char) byte;
}
else
@@ -896,13 +901,15 @@ static void DecodeImage (wmfAPI* API,wmfBMP* bmp,BMPSource* src,unsigned int com
else
{ /* Escape mode. */
count = ReadBlobByte (src);
- if (count == 0x01) return;
+ if (count == 0x01) return 1;
switch (count)
{
case 0x00:
{ /* End of line. */
x = 0;
y++;
+ if (y >= bmp->height)
+ return 0;
q = pixels + y * bmp->width;
break;
}
@@ -910,13 +917,20 @@ static void DecodeImage (wmfAPI* API,wmfBMP* bmp,BMPSource* src,unsigned int com
{ /* Delta mode. */
x += ReadBlobByte (src);
y += ReadBlobByte (src);
+ if (y >= bmp->height)
+ return 0;
+ if (x >= bmp->width)
+ return 0;
q = pixels + y * bmp->width + x;
break;
}
default:
{ /* Absolute mode. */
for (i = 0; i < count; i++)
- { if (compression == 1)
+ {
+ if (q == end)
+ return 0;
+ if (compression == 1)
{ (*(q++)) = ReadBlobByte (src);
}
else
@@ -943,7 +957,7 @@ static void DecodeImage (wmfAPI* API,wmfBMP* bmp,BMPSource* src,unsigned int com
byte = ReadBlobByte (src); /* end of line */
byte = ReadBlobByte (src);
- return;
+ return 1;
}
/*
@@ -1143,8 +1157,18 @@ static void ReadBMPImage (wmfAPI* API,wmfBMP* bmp,BMPSource* src)
}
}
else
- { /* Convert run-length encoded raster pixels. */
- DecodeImage (API,bmp,src,(unsigned int) bmp_info.compression,data->image);
+ {
+ if (bmp_info.bits_per_pixel == 8) /* Convert run-length encoded raster pixels. */
+ {
+ if (!DecodeImage (API,bmp,src,(unsigned int) bmp_info.compression,data->image))
+ { WMF_ERROR (API,"corrupt bmp");
+ API->err = wmf_E_BadFormat;
+ }
+ }
+ else
+ { WMF_ERROR (API,"Unexpected pixel depth");
+ API->err = wmf_E_BadFormat;
+ }
}
if (ERR (API))
meta-oe/recipes-extended/libwmf/libwmf_0.2.8.4.bb
+2 -1
View File
@@ -19,7 +19,8 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/wvware/${BPN}/${PV}/${BPN}-${PV}.tar.gz;name=ta
file://libwmf-0.2.8.4-intoverflow.patch \
file://libwmf-0.2.8.4-useafterfree.patch \
file://0001-configure-use-pkg-config-for-freetype.patch \
"
file://CVE-2015-0848-CVE-2015-4588.patch \
"
SRC_URI[tarball.md5sum] = "d1177739bf1ceb07f57421f0cee191e0"
SRC_URI[tarball.sha256sum] = "5b345c69220545d003ad52bfd035d5d6f4f075e65204114a9e875e84895a7cf8"