| Descripción: | Description:
The remote host is missing an update to gpdf
announced via advisory MDKSA-2006:006.
Multiple heap-based buffer overflows in the
DCTStream::readProgressiveSOF and DCTStream::readBaselineSOF functions
in the DCT stream parsing code (Stream.cc) in xpdf 3.01 and earlier,
allow user-complicit attackers to cause a denial of service (heap
corruption) and possibly execute arbitrary code via a crafted PDF file
with an out-of-range number of components (numComps), which is used as
an array index. (CVE-2005-3191)
Heap-based buffer overflow in the StreamPredictor function in Xpdf 3.01
allows remote attackers to execute arbitrary code via a PDF file with
an out-of-range numComps (number of components) field. (CVE-2005-3192)
Heap-based buffer overflow in the JPXStream::readCodestream function
in the JPX stream parsing code (JPXStream.c) for xpdf 3.01 and earlier
allows user-complicit attackers to cause a denial of service (heap
corruption) and possibly execute arbitrary code via a crafted PDF file
with large size values that cause insufficient memory to be allocated.
(CVE-2005-3193)
An additional patch re-addresses memory allocation routines in
goo/gmem.c (Martin Pitt/Canonical, Dirk Mueller/KDE).
In addition, Chris Evans discovered several other vulnerbilities in
the xpdf code base:
Out-of-bounds heap accesses with large or negative parameters to
FlateDecode stream. (CVE-2005-3192)
Out-of-bounds heap accesses with large or negative parameters to
CCITTFaxDecode stream. (CVE-2005-3624)
Infinite CPU spins in various places when stream ends unexpectedly.
(CVE-2005-3625)
NULL pointer crash in the FlateDecode stream. (CVE-2005-3626)
Overflows of compInfo array in DCTDecode stream. (CVE-2005-3627)
Possible to use index past end of array in DCTDecode stream.
(CVE-2005-3627)
Possible out-of-bounds indexing trouble in DCTDecode stream.
(CVE-2005-3627)
Gpdf uses an embedded copy of the xpdf code, with the same
vulnerabilities.
The updated packages have been patched to correct these problems.
Affected: Corporate 3.0
Solution:
To upgrade automatically use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.
http://www.securityspace.com/smysecure/catid.html?in=MDKSA-2006:006
Risk factor : Critical
CVSS Score:
10.0
|
