| Description: | Summary:
The remote host is missing an update for the 'php5' package(s) announced via the USN-1126-2 advisory.
Vulnerability Insight:
USN 1126-1 fixed several vulnerabilities in PHP. The fix for
CVE-2010-4697 introduced an incorrect reference counting regression
in the Zend engine that caused the PHP interpreter to segfault. This
regression affects Ubuntu 6.06 LTS and Ubuntu 8.04 LTS.
The fixes for CVE-2011-1072 and CVE-2011-1144 introduced a regression
in the PEAR installer that prevented it from creating its cache
directory and reporting errors correctly.
We apologize for the inconvenience.
Original advisory details:
Stephane Chazelas discovered that the /etc/cron.d/php5 cron job for
PHP 5.3.5 allows local users to delete arbitrary files via a symlink
attack on a directory under /var/lib/php5/. (CVE-2011-0441)
Raphael Geisert and Dan Rosenberg discovered that the PEAR installer
allows local users to overwrite arbitrary files via a symlink attack on
the package.xml file, related to the (1) download_dir, (2) cache_dir,
(3) tmp_dir, and (4) pear-build-download directories. (CVE-2011-1072,
CVE-2011-1144)
Ben Schmidt discovered that a use-after-free vulnerability in the PHP
Zend engine could allow an attacker to cause a denial of service (heap
memory corruption) or possibly execute arbitrary code. (CVE-2010-4697)
Martin Barbella discovered a buffer overflow in the PHP GD extension
that allows an attacker to cause a denial of service (application crash)
via a large number of anti- aliasing steps in an argument to the
imagepstext function. (CVE-2010-4698)
It was discovered that PHP accepts the \0 character in a pathname,
which might allow an attacker to bypass intended access restrictions
by placing a safe file extension after this character. This issue
is addressed in Ubuntu 10.04 LTS, Ubuntu 10.10, and Ubuntu 11.04.
(CVE-2006-7243)
Maksymilian Arciemowicz discovered that the grapheme_extract function
in the PHP Internationalization extension (Intl) for ICU allow
an attacker to cause a denial of service (crash) via an invalid
size argument, which triggers a NULL pointer dereference. This
issue affected Ubuntu 10.04 LTS, Ubuntu 10.10, and Ubuntu
11.04. (CVE-2011-0420)
Maksymilian Arciemowicz discovered that the _zip_name_locate
function in the PHP Zip extension does not properly handle a
ZIPARCHIVE::FL_UNCHANGED argument, which might allow an attacker to
cause a denial of service (NULL pointer dereference) via an empty
ZIP archive. This issue affected Ubuntu 8.04 LTS, Ubuntu 9.10, Ubuntu
10.04 LTS, Ubuntu 10.10, and Ubuntu 11.04. (CVE-2011-0421)
Luca Carettoni discovered that the PHP Exif extension performs an
incorrect cast on 64bit platforms, which allows a remote attacker
to cause a denial of service (application crash) via an image with
a crafted Image File Directory (IFD). (CVE-2011-0708)
Jose Carlos Norte discovered that an integer overflow in the PHP
shmop extension could allow an attacker to cause a denial of service
(crash) and possibly read ... [Please see the references for more information on the vulnerabilities]
Affected Software/OS:
'php5' package(s) on Ubuntu 6.06, Ubuntu 8.04, Ubuntu 9.10, Ubuntu 10.04, Ubuntu 10.10, Ubuntu 11.04.
Solution:
Please install the updated package(s).
CVSS Score:
6.8
CVSS Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P
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