Multiple BSD systems strfmon() integer overflow

bsd-strfmon-overflow (41504) The risk level is classified as HighHigh Risk

Description:

Multiple BSD systems are vulnerable to multiple integer overflows, caused by improper bounds checking by the strfmon() function in the libc library. By sending a specially-crafted value containing malicious format specifiers, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the system to crash.

Platforms Affected:

  • FreeBSD, FreeBSD 6.0
  • FreeBSD, FreeBSD 7.0
  • NetBSD, NetBSD 4.0

Remedy:

For NetBSD:
Apply the fix, available from the NetBSD CVS Repository. See References.

Consequences:

Gain Access

References:

Reported:

Mar 27, 2008

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