RHSA-2014:1766 - Security Advisory

Topic

Updated php55-php packages that fix multiple security issues are now
available for Red Hat Software Collections 1.

Red Hat Product Security has rated this update as having Important security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links in the References section.

Description

PHP is an HTML-embedded scripting language commonly used with the Apache
HTTP Server.

A buffer overflow flaw was found in the Exif extension. A specially crafted
JPEG or TIFF file could cause a PHP application using the exif_thumbnail()
function to crash or, possibly, execute arbitrary code. (CVE-2014-3670)

Multiple buffer overflow flaws were found in the way PHP parsed DNS
responses. A malicious DNS server or a man-in-the-middle attacker could
use these flaws to crash or, possibly, execute arbitrary code with the
privileges of a PHP application that uses the dns_get_record() function.
(CVE-2014-4049, CVE-2014-3597)

Multiple denial of service flaws were found in the File Information
(fileinfo) extension. A remote attacker could use these flaws to cause a
PHP application using fileinfo to consume an excessive amount of CPU and
possibly crash. (CVE-2014-0237, CVE-2014-0238, CVE-2014-3538)

Multiple boundary check flaws were found in the File Information (fileinfo)
extension. A remote attacker could use these flaws to cause a PHP
application using fileinfo to crash. (CVE-2014-0207, CVE-2014-3478,
CVE-2014-3479, CVE-2014-3480, CVE-2014-3487, CVE-2014-3587, CVE-2014-3710)

A type confusion issue was found in PHP's phpinfo() function. A malicious
script author could possibly use this flaw to disclose certain portions of
server memory. (CVE-2014-4721)

A type confusion issue was found in the SPL ArrayObject and
SPLObjectStorage classes' unserialize() method. A remote attacker able to
submit specially crafted input to a PHP application, which would then
unserialize this input using one of the aforementioned methods, could use
this flaw to execute arbitrary code with the privileges of the user running
that PHP application. (CVE-2014-3515)

Two use-after-free flaws were found in the way PHP handled certain Standard
PHP Library (SPL) Iterators and ArrayIterators. A malicious script author
could possibly use either of these flaws to disclose certain portions of
server memory. (CVE-2014-4670, CVE-2014-4698)

An integer overflow flaw was found in the way custom objects were
unserialized. Specially crafted input processed by the unserialize()
function could cause a PHP application to crash. (CVE-2014-3669)

It was found that PHP's gd extension did not properly handle file names
with a null character. A remote attacker could possibly use this flaw to
make a PHP application access unexpected files and bypass intended file
system access restrictions. (CVE-2014-5120)

A NULL pointer dereference flaw was found in the gdImageCreateFromXpm()
function of PHP's gd extension. A remote attacker could use this flaw to
crash a PHP application using gd via a specially crafted X PixMap (XPM)
file. (CVE-2014-2497)

An out of bounds read flaw was found in the way the xmlrpc extension parsed
dates in the ISO 8601 format. A specially crafted XML-RPC request or
response could possibly cause a PHP application to crash. (CVE-2014-3668)

The CVE-2014-0207, CVE-2014-0237, CVE-2014-0238, CVE-2014-3478,
CVE-2014-3479, CVE-2014-3480, CVE-2014-3487, and CVE-2014-3710 issues were
discovered by Francisco Alonso of Red Hat Product Security; the
CVE-2014-3538 issue was discovered by Jan Kaluža of the Red Hat Web Stack
Team; the CVE-2014-3597 issue was discovered by David Kutálek of Red Hat
BaseOS QE.

All php55-php users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. After installing the
updated packages, the httpd24-httpd service must be restarted for the
update to take effect.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258

Affected Products

• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6.6 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6.5 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6.4 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6 x86_64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 6 x86_64
• Red Hat Software Collections (for RHEL Server) from RHUI 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server) from RHUI 1 for RHEL 6 x86_64

Fixes

• BZ - 1076676 - CVE-2014-2497 gd: NULL pointer dereference in gdImageCreateFromXpm()
• BZ - 1091842 - CVE-2014-0207 file: cdf_read_short_sector insufficient boundary check
• BZ - 1098155 - CVE-2014-0238 file: CDF property info parsing nelements infinite loop
• BZ - 1098193 - CVE-2014-0237 file: cdf_unpack_summary_info() excessive looping DoS
• BZ - 1098222 - CVE-2014-3538 file: unrestricted regular expression matching
• BZ - 1104858 - CVE-2014-3480 file: cdf_count_chain insufficient boundary check
• BZ - 1104863 - CVE-2014-3478 file: mconvert incorrect handling of truncated pascal string size
• BZ - 1104869 - CVE-2014-3479 file: cdf_check_stream_offset insufficient boundary check
• BZ - 1107544 - CVE-2014-3487 file: cdf_read_property_info insufficient boundary check
• BZ - 1108447 - CVE-2014-4049 php: heap-based buffer overflow in DNS TXT record parsing
• BZ - 1112154 - CVE-2014-3515 php: unserialize() SPL ArrayObject / SPLObjectStorage type confusion flaw
• BZ - 1116662 - CVE-2014-4721 php: type confusion issue in phpinfo() leading to information leak
• BZ - 1120259 - CVE-2014-4698 php: ArrayIterator use-after-free due to object change during sorting
• BZ - 1120266 - CVE-2014-4670 php: SPL Iterators use-after-free
• BZ - 1128587 - CVE-2014-3587 file: incomplete fix for CVE-2012-1571 in cdf_read_property_info
• BZ - 1132589 - CVE-2014-3597 php: multiple buffer over-reads in php_parserr
• BZ - 1132793 - CVE-2014-5120 php: gd extension NUL byte injection in file names
• BZ - 1154500 - CVE-2014-3669 php: integer overflow in unserialize()
• BZ - 1154502 - CVE-2014-3670 php: heap corruption issue in exif_thumbnail()
• BZ - 1154503 - CVE-2014-3668 php: xmlrpc ISO8601 date format parsing out-of-bounds read in mkgmtime()
• BZ - 1155071 - CVE-2014-3710 file: out-of-bounds read in elf note headers

CVEs

• CVE-2014-0237
• CVE-2014-4049
• CVE-2014-0207
• CVE-2014-3515
• CVE-2014-0238
• CVE-2014-3479
• CVE-2014-3487
• CVE-2014-3480
• CVE-2014-4721
• CVE-2014-4698
• CVE-2014-2497
• CVE-2014-3587
• CVE-2014-3597
• CVE-2014-4670
• CVE-2014-5120
• CVE-2014-3538
• CVE-2014-3478
• CVE-2014-3669
• CVE-2014-3668
• CVE-2014-3670
• CVE-2014-3710

References

• https://access.redhat.com/security/updates/classification/#important