Secunia Security Advisory - Christian S.J. Peron has reported some vulnerabilities in FreeBSD, which can be exploited by malicious, local users to gain knowledge of potentially sensitive information.
de5c12ced06f4113c3a897c452629984f4dda065ce55dd4e39ff8331cf380186
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TITLE:
FreeBSD Kernel Memory Disclosure Vulnerabilities
SECUNIA ADVISORY ID:
SA15262
VERIFY ADVISORY:
http://secunia.com/advisories/15262/
CRITICAL:
Less critical
IMPACT:
Exposure of sensitive information
WHERE:
Local system
OPERATING SYSTEM:
FreeBSD 5.x
http://secunia.com/product/1132/
FreeBSD 4.x
http://secunia.com/product/139/
DESCRIPTION:
Christian S.J. Peron has reported some vulnerabilities in FreeBSD,
which can be exploited by malicious, local users to gain knowledge of
potentially sensitive information.
The vulnerabilities are caused due to various errors in the kernel
where variable-sized input is passed to applications in fixed-length
buffers without zeroing the unused portion of the buffers.
Successful exploitation discloses random data in kernel memory.
SOLUTION:
Update FreeBSD or apply patch.
Fixed versions:
2005-05-06 02:50:00 UTC (RELENG_5, 5.4-STABLE)
2005-05-06 02:51:10 UTC (RELENG_5_4, 5.4-RELEASE)
2005-05-06 02:50:35 UTC (RELENG_5_3, 5.3-RELEASE-p13)
2005-05-06 02:48:46 UTC (RELENG_4, 4.11-STABLE)
2005-05-06 02:49:35 UTC (RELENG_4_11, 4.11-RELEASE-p7)
2005-05-06 02:49:08 UTC (RELENG_4_10, 4.10-RELEASE-p12)
Patch for FreeBSD 4.x:
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:08/kmem4.patch
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:08/kmem4.patch.asc
Patch for FreeBSD 5.x:
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:08/kmem5.patch
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:08/kmem5.patch.asc
PROVIDED AND/OR DISCOVERED BY:
Christian S.J. Peron
ORIGINAL ADVISORY:
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:08.kmem.asc
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