BSD broadcast address security bypass

bsd-broadcast-address (8485) The risk level is classified as LowLow Risk

Description:

The TCP/IP implementation in some BSD distributions could allow a local attacker to bypass firewall rules. A local attacker can send a packet with a unicast link-layer address that contains an IP broadcast address in an attempt to establish a TCP connection to a broadcast address.


Consequences:

Bypass Security

Remedy:

For FreeBSD:
Apply the patch for this vulnerability, as listed in FreeBSD Problem Report misc/35022. See References.

For NetBSD 1.5.2 and earlier:
Apply the patch for this vulnerability included in the BugTraq Mailing List posting dated Mar 17 2002 1:30AM. See References.

For OpenBSD 2.0 through 3.0:
Apply the patch for this vulnerability included in the BugTraq Mailing List posting dated Mar 17 2002 1:30AM. See References.

For SGI IRIX 6.5 through 6.5.16:
Upgrade to the latest version of IRIX (6.5.17 or later), as listed in SGI Security Advisory 20030604-01-I. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

Platforms Affected:

  • FreeBSD FreeBSD 2.0
  • FreeBSD FreeBSD 2.0.5
  • FreeBSD FreeBSD 2.1.5
  • FreeBSD FreeBSD 2.1.6
  • FreeBSD FreeBSD 2.2
  • FreeBSD FreeBSD 2.2.2
  • FreeBSD FreeBSD 2.2.3
  • FreeBSD FreeBSD 2.2.4
  • FreeBSD FreeBSD 2.2.5
  • FreeBSD FreeBSD 2.2.6
  • FreeBSD FreeBSD 2.2.8
  • FreeBSD FreeBSD 3.0
  • FreeBSD FreeBSD 3.1
  • FreeBSD FreeBSD 3.2
  • FreeBSD FreeBSD 3.3
  • FreeBSD FreeBSD 3.4
  • FreeBSD FreeBSD 3.5
  • FreeBSD FreeBSD 3.5.1
  • FreeBSD FreeBSD 4.0
  • FreeBSD FreeBSD 4.1
  • FreeBSD FreeBSD 4.1.1
  • FreeBSD FreeBSD 4.2
  • FreeBSD FreeBSD 4.3
  • FreeBSD FreeBSD 4.4
  • FreeBSD FreeBSD 4.5
  • FreeBSD FreeBSD 5.0
  • NetBSD NetBSD 1.0
  • NetBSD NetBSD 1.1
  • NetBSD NetBSD 1.2
  • NetBSD NetBSD 1.2.1
  • NetBSD NetBSD 1.3
  • NetBSD NetBSD 1.3.1
  • NetBSD NetBSD 1.3.2
  • NetBSD NetBSD 1.3.3
  • NetBSD NetBSD 1.4
  • NetBSD NetBSD 1.4.1
  • NetBSD NetBSD 1.4.2
  • NetBSD NetBSD 1.4.3
  • NetBSD NetBSD 1.5
  • NetBSD NetBSD 1.5.1
  • NetBSD NetBSD 1.5.2
  • OpenBSD OpenBSD 2.x
  • OpenBSD OpenBSD 3.0
  • SGI IRIX 6.5
  • SGI IRIX 6.5.1
  • SGI IRIX 6.5.10
  • SGI IRIX 6.5.10f
  • SGI IRIX 6.5.10m
  • SGI IRIX 6.5.11
  • SGI IRIX 6.5.11f
  • SGI IRIX 6.5.11m
  • SGI IRIX 6.5.12
  • SGI IRIX 6.5.12f
  • SGI IRIX 6.5.12m
  • SGI IRIX 6.5.13
  • SGI IRIX 6.5.13f
  • SGI IRIX 6.5.13m
  • SGI IRIX 6.5.14
  • SGI IRIX 6.5.14f
  • SGI IRIX 6.5.14m
  • SGI IRIX 6.5.15
  • SGI IRIX 6.5.15f
  • SGI IRIX 6.5.15m
  • SGI IRIX 6.5.16
  • SGI IRIX 6.5.2f
  • SGI IRIX 6.5.2m
  • SGI IRIX 6.5.3
  • SGI IRIX 6.5.3f
  • SGI IRIX 6.5.3m
  • SGI IRIX 6.5.4
  • SGI IRIX 6.5.4f
  • SGI IRIX 6.5.4m
  • SGI IRIX 6.5.5
  • SGI IRIX 6.5.5f
  • SGI IRIX 6.5.5m
  • SGI IRIX 6.5.6
  • SGI IRIX 6.5.6f
  • SGI IRIX 6.5.6m
  • SGI IRIX 6.5.7
  • SGI IRIX 6.5.7f
  • SGI IRIX 6.5.7m
  • SGI IRIX 6.5.8
  • SGI IRIX 6.5.8f
  • SGI IRIX 6.5.8m
  • SGI IRIX 6.5.9
  • SGI IRIX 6.5.9f
  • SGI IRIX 6.5.9m

Reported:

Mar 17, 2002

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