Debian DSA-1789-1 : php5 - several vulnerabilities

Critical Nessus Plugin ID 38691

Synopsis

The remote Debian host is missing a security-related update.

Description

Several remote vulnerabilities have been discovered in the PHP 5 hypertext preprocessor. The Common Vulnerabilities and Exposures project identifies the following problems.

The following four vulnerabilities have already been fixed in the stable (lenny) version of php5 prior to the release of lenny. This update now addresses them for etch (oldstable) as well :

- CVE-2008-2107 / CVE-2008-2108 The GENERATE_SEED macro has several problems that make predicting generated random numbers easier, facilitating attacks against measures that use rand() or mt_rand() as part of a protection.

- CVE-2008-5557 A buffer overflow in the mbstring extension allows attackers to execute arbitrary code via a crafted string containing an HTML entity.

- CVE-2008-5624 The page_uid and page_gid variables are not correctly set, allowing use of some functionality intended to be restricted to root.

- CVE-2008-5658 Directory traversal vulnerability in the ZipArchive::extractTo function allows attackers to write arbitrary files via a ZIP file with a file whose name contains .. (dot dot) sequences.

This update also addresses the following three vulnerabilities for both oldstable (etch) and stable (lenny) :

- CVE-2008-5814 Cross-site scripting (XSS) vulnerability, when display_errors is enabled, allows remote attackers to inject arbitrary web script or HTML.

- CVE-2009-0754 When running on Apache, PHP allows local users to modify behavior of other sites hosted on the same web server by modifying the mbstring.func_overload setting within .htaccess, which causes this setting to be applied to other virtual hosts on the same server.

- CVE-2009-1271 The JSON_parser function allows a denial of service (segmentation fault) via a malformed string to the json_decode API function.

Furthermore, two updates originally scheduled for the next point update for oldstable are included in the etch package :

- Let PHP use the system timezone database instead of the embedded timezone database which is out of date.
- From the source tarball, the unused 'dbase' module has been removed which contained licensing problems.

Solution

Upgrade the php5 package.

For the old stable distribution (etch), these problems have been fixed in version 5.2.0+dfsg-8+etch15.


For the stable distribution (lenny), these problems have been fixed in version 5.2.6.dfsg.1-1+lenny3.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507101

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507857

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508021

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511493

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=523028

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=523049

https://security-tracker.debian.org/tracker/CVE-2008-2107

https://security-tracker.debian.org/tracker/CVE-2008-2108

https://security-tracker.debian.org/tracker/CVE-2008-5557

https://security-tracker.debian.org/tracker/CVE-2008-5624

https://security-tracker.debian.org/tracker/CVE-2008-5658

https://security-tracker.debian.org/tracker/CVE-2008-5814

https://security-tracker.debian.org/tracker/CVE-2009-0754

https://security-tracker.debian.org/tracker/CVE-2009-1271

https://www.debian.org/security/2009/dsa-1789

Plugin Details

Severity: Critical

ID: 38691

File Name: debian_DSA-1789.nasl

Version: 1.15

Type: local

Agent: unix

Published: 2009/05/06

Updated: 2018/11/28

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:php5, cpe:/o:debian:debian_linux:4.0, cpe:/o:debian:debian_linux:5.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2009/05/04

Reference Information

CVE: CVE-2008-2107, CVE-2008-2108, CVE-2008-5557, CVE-2008-5624, CVE-2008-5658, CVE-2008-5814, CVE-2009-0754, CVE-2009-1271

BID: 29009, 32625, 32948, 33542

DSA: 1789

CWE: 22, 79, 119, 134, 189, 264