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USN-1042-1: PHP vulnerabilities

11 January 2011

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Details

It was discovered that an integer overflow in the XML UTF-8 decoding
code could allow an attacker to bypass cross-site scripting (XSS)
protections. This issue only affected Ubuntu 6.06 LTS, Ubuntu 8.04 LTS,
and Ubuntu 9.10. (CVE-2009-5016)

It was discovered that the XML UTF-8 decoding code did not properly
handle non-shortest form UTF-8 encoding and ill-formed subsequences
in UTF-8 data, which could allow an attacker to bypass cross-site
scripting (XSS) protections. (CVE-2010-3870)

It was discovered that attackers might be able to bypass open_basedir()
restrictions by passing a specially crafted filename. (CVE-2010-3436)

Maksymilian Arciemowicz discovered that a NULL pointer derefence in the
ZIP archive handling code could allow an attacker to cause a denial
of service through a specially crafted ZIP archive. This issue only
affected Ubuntu 8.04 LTS, Ubuntu 9.10, Ubuntu 10.04 LTS, and Ubuntu
10.10. (CVE-2010-3709)

It was discovered that a stack consumption vulnerability in the
filter_var() PHP function when in FILTER_VALIDATE_EMAIL mode, could
allow a remote attacker to cause a denial of service. This issue
only affected Ubuntu 8.04 LTS, Ubuntu 9.10, Ubuntu 10.04 LTS, and
Ubuntu 10.10. (CVE-2010-3710)

It was discovered that the mb_strcut function in the Libmbfl
library within PHP could allow an attacker to read arbitrary memory
within the application process. This issue only affected Ubuntu
10.10. (CVE-2010-4156)

Maksymilian Arciemowicz discovered that an integer overflow in the
NumberFormatter::getSymbol function could allow an attacker to cause
a denial of service. This issue only affected Ubuntu 10.04 LTS and
Ubuntu 10.10. (CVE-2010-4409)

Rick Regan discovered that when handing PHP textual representations
of the largest subnormal double-precision floating-point number,
the zend_strtod function could go into an infinite loop on 32bit
x86 processors, allowing an attacker to cause a denial of service.
(CVE-2010-4645)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 9.10
Ubuntu 8.04
Ubuntu 6.06
Ubuntu 10.10
Ubuntu 10.04

In general, a standard system update will make all the necessary changes.