Secunia Security Advisory - A vulnerability has been reported in FreeBSD, which can be exploited by malicious, local users to disclose potentially sensitive information.
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TITLE:
FreeBSD Direct Pipe Writes Information Disclosure Vulnerability
SECUNIA ADVISORY ID:
SA35398
VERIFY ADVISORY:
http://secunia.com/advisories/35398/
DESCRIPTION:
A vulnerability has been reported in FreeBSD, which can be exploited
by malicious, local users to disclose potentially sensitive
information.
The vulnerability is caused due to an integer overflow within the
implementation of "direct pipe writes", which can lead to
virtual-to-physical address lookups being skipped. This can be
exploited to e.g. disclose memory parts of other processes.
SOLUTION:
Update FreeBSD or apply patches.
Fixed versions:
2009-06-10 10:31:11 UTC (RELENG_7, 7.2-STABLE)
2009-06-10 10:31:11 UTC (RELENG_7_2, 7.2-RELEASE-p1)
2009-06-10 10:31:11 UTC (RELENG_7_1, 7.1-RELEASE-p6)
2009-06-10 10:31:11 UTC (RELENG_6, 6.4-STABLE)
2009-06-10 10:31:11 UTC (RELENG_6_4, 6.4-RELEASE-p5)
2009-06-10 10:31:11 UTC (RELENG_6_3, 6.3-RELEASE-p11)
Patch:
http://security.FreeBSD.org/patches/SA-09:09/pipe.patch.asc
PROVIDED AND/OR DISCOVERED BY:
Pieter de Boer
ORIGINAL ADVISORY:
FreeBSD-SA-09:09.pipe:
http://security.freebsd.org/advisories/FreeBSD-SA-09:09.pipe.asc
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