DoS from June 2000 not fixed

[Pedro Timoteo <deh@contentlab.net>]

Hi. A colleague of mine was going through the SecurityFocus archives and
asked me to try out this DoS:
http://www.securityfocus.com/bid/1296

As I had updated everything from OPENBSD2.7-stable two days ago, compiled
everything from /usr/src (including the kernel, which is just GENERIC with
some things removed) I was sure that it wouldn't work, so I compiled the
program available there... and it totally hang up my system. Nothing
worked, had to do a cold restart.

Anything I can do about this? Apparently it affects other BSDs like FreeBSD
and NetBSD (all versions) as well.


Here's the dmesg, don't know if it helps:

OpenBSD 2.7-stable (DEH) #1: Fri Oct  6 11:15:30 WEST 2000
    deh@deh:/usr/src/sys/arch/i386/compile/DEH
cpu0: Intel Pentium III (Coppermine) ("GenuineIntel" 686-class) 669 MHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSdeh@deh
deh$ dmesg
OpenBSD 2.7-stable (DEH) #1: Fri Oct  6 11:15:30 WEST 2000
    deh@deh:/usr/src/sys/arch/i386/compile/DEH
cpu0: Intel Pentium III (Coppermine) ("GenuineIntel" 686-class) 669 MHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SIMD
real mem  = 133738496 (130604K)
avail mem = 119427072 (116628K)
using 1658 buffers containing 6791168 bytes (6632K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(6e) BIOS, date 12/13/99
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel 82443BX PCI-AGP (PAC)" rev 0x03
ppb0 at pci0 dev 1 function 0 "Intel 82443BX AGP (PAC)" rev 0x03
pci1 at ppb0 bus 1
vendor "Nvidia", unknown product 0x2c (class display, subclass VGA, rev
0x15) at pci1 dev 0 function 0 not configured
pcib0 at pci0 dev 7 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02
pciide0 at pci0 dev 7 function 1 "Intel 82371AB IDE (PIIX4)" rev 0x01: DMA,
channel 0 wired to compatibility, channel 1 wired to compatibility
atapiscsi0 at pciide0 channel 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 1 lun 0: <SAMSUNG, CD-ROM SC-152B, BS02> SCSI0 5/cdrom
removable
cd0: can use 32-bit, PIO mode 4, DMA mode 2
wd0 at pciide0 channel 0 drive 0: <Maxtor 91021U2>
wd0: can use 32-bit, PIO mode 4, DMA mode 2, Ultra-DMA mode 2
wd0: 16-sector PIO, LBA, 9770MB, 16383 cyl, 16 head, 63 sec, 20010816
sectors
pciide0: channel 0 interrupting at irq 14
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (using DMA data
transfers)
cd0(pciide0:0:1): using PIO mode 4, DMA mode 2 (using DMA data transfers)
"Intel 82371AB USB (PIIX4)" rev 0x01 at pci0 dev 7 function 2 not
configured
"Intel 82371AB Power Management (PIIX4)" rev 0x02 at pci0 dev 7 function 3
not configured
rl0 at pci0 dev 9 function 0 "Realtek 8139" rev 0x10: irq 10 address
00:4f:4e:06:56:8f
rlphy0 at rl0 phy 0: RTL internal phy
isa0 at pcib0
isadma0 at isa0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
vt0 at isa0 port 0x60/16 irq 1: vga 80 col, color, 8 scr, mf2-kbd
pms0 at vt0 irq 12
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
isapnp0 at isa0 port 0x279: read port 0x203
sb1 at isapnp0 "Creative ViBRA16X PnP, CTL0043, , Audio" port
0x220/16,0x330/2,0x388/4 irq 5 drq 1,3: dsp v4.16
midi1 at sb1: <SB MPU-401 UART>
audio0 at sb1
opl0 at sb1: model OPL3
midi2 at opl0: <SB Yamaha OPL3>
joy0 at isapnp0 "Creative ViBRA16X PnP, CTL7005, PNPB02F, Game" port
0x201/1
biomask 4040 netmask 4440 ttymask 54c2
pctr: 686-class user-level performance counters enabled
mtrr: Pentium Pro MTRR support
dkcsum: wd0 matched BIOS disk 80
root on wd0b
rootdev=0x1 rrootdev=0x301 rawdev=0x302


-- 
If you have a procedure with 10 parameters, you probably missed some.