Ubuntu 4.10 : php4 vulnerabilities (USN-99-1)

critical Nessus Plugin ID 20725

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

Stefano Di Paola discovered integer overflows in PHP's pack() and unpack() functions. A malicious PHP script could exploit these to break out of safe mode and execute arbitrary code with the privileges of the PHP interpreter. (CAN-2004-1018)

Note: The second part of CAN-2004-1018 (buffer overflow in the shmop_write() function) was already fixed in USN-66-1.

Stefan Esser discovered two safe mode bypasses which allowed malicious PHP scripts to circumvent path restrictions. This was possible by either using virtual_popen() with a current directory containing shell metacharacters (CAN-2004-1063) or creating a specially crafted directory whose length exceeded the capacity of the realpath() function (CAN-2004-1064).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 20725

File Name: ubuntu_USN-99-1.nasl

Version: 1.14

Type: local

Agent: unix

Family: Ubuntu Local Security Checks

Published: 1/15/2006

Updated: 1/19/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.8

CVSS v2

Risk Factor: Critical

Base Score: 10

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php4, p-cpe:/a:canonical:ubuntu_linux:php4, p-cpe:/a:canonical:ubuntu_linux:php4-cgi, p-cpe:/a:canonical:ubuntu_linux:php4-curl, p-cpe:/a:canonical:ubuntu_linux:php4-dev, p-cpe:/a:canonical:ubuntu_linux:php4-domxml, p-cpe:/a:canonical:ubuntu_linux:php4-gd, p-cpe:/a:canonical:ubuntu_linux:php4-ldap, p-cpe:/a:canonical:ubuntu_linux:php4-mcal, p-cpe:/a:canonical:ubuntu_linux:php4-mhash, p-cpe:/a:canonical:ubuntu_linux:php4-mysql, p-cpe:/a:canonical:ubuntu_linux:php4-odbc, p-cpe:/a:canonical:ubuntu_linux:php4-pear, p-cpe:/a:canonical:ubuntu_linux:php4-recode, p-cpe:/a:canonical:ubuntu_linux:php4-snmp, p-cpe:/a:canonical:ubuntu_linux:php4-sybase, p-cpe:/a:canonical:ubuntu_linux:php4-xslt, cpe:/o:canonical:ubuntu_linux:4.10

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

Patch Publication Date: 3/18/2005

Reference Information

CVE: CVE-2004-1018, CVE-2004-1063, CVE-2004-1064

USN: 99-1

Detections

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