Users of Sun Microsystems Inc.'s Sun ONE Web server need to apply Service Pack 6 to fix a buffer-overflow vulnerability that could make possible a denial-of-service attack.
Santa Clara, Calif.-based Sun announced the presence of the buffer overflow on Friday. The company did not say which component of the Web server contains the flaw.
Since the Web server routinely handles remote traffic, it's possible for a remote attacker to cause the buffer overflow. It's also possible for the buffer overflow to crash the Web server, which would result in a denial of service, Sun said.
The vulnerability is found in Sun ONE/iPlanet Web Server version 6.x Service Pack 5 and earlier versions. (Sun ONE/iPlanet Web Server 6.0 Service Pack 6 and later versions are not vulnerable.) The problem only occurs on the HP-UX platform, versions 10.x and 11.x. There is no workaround, but Sun has released Service Pack 6, which fixes the problem.
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