Multiple vulnerabilities in PHP



| Updated: 2020-08-11
Risk Medium
Patch available NO
Number of vulnerabilities 3
CVE-ID CVE-2012-0781
CVE-2011-4153
CVE-2011-3379
CWE-ID CWE-476
CWE-94
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Vulnerable software
 PHP
Universal components / Libraries / Scripting languages

Vendor PHP Group

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU44403

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2012-0781

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via crafted input to an application that attempts to perform Tidy::diagnose operations on invalid objects, a different vulnerability than CVE-2011-4153.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

PHP: 5.3.8

CPE2.3 External links

https://archives.neohapsis.com/archives/bugtraq/2012-01/0092.html
https://cxsecurity.com/research/103
https://lists.opensuse.org/opensuse-security-announce/2012-03/msg00013.html
https://lists.opensuse.org/opensuse-security-announce/2012-03/msg00016.html
https://secunia.com/advisories/48668
https://www.exploit-db.com/exploits/18370/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) NULL pointer dereference

EUVDB-ID: #VU44404

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2011-4153

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via crafted input to an application that performs strndup operations on untrusted string data, as demonstrated by the define function in zend_builtin_functions.c, and unspecified functions in ext/soap/php_sdl.c, ext/standard/syslog.c, ext/standard/browscap.c, ext/oci8/oci8.c, ext/com_dotnet/com_typeinfo.c, and main/php_open_temporary_file.c.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

PHP: 5.3.8

CPE2.3
External links

https://archives.neohapsis.com/archives/bugtraq/2012-01/0092.html
https://cxsecurity.com/research/103
https://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
https://lists.opensuse.org/opensuse-security-announce/2012-03/msg00013.html
https://lists.opensuse.org/opensuse-security-announce/2012-03/msg00016.html
https://lists.opensuse.org/opensuse-security-announce/2012-04/msg00001.html
https://marc.info/?l=bugtraq&m=134012830914727&w=2
https://secunia.com/advisories/48668
https://www.exploit-db.com/exploits/18370/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) Code Injection

EUVDB-ID: #VU44549

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2011-3379

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The is_a function in PHP 5.3.7 and 5.3.8 triggers a call to the __autoload function, which makes it easier for remote attackers to execute arbitrary code by providing a crafted URL and leveraging potentially unsafe behavior in certain PEAR packages and custom autoloaders.

Mitigation

Install update from vendor's website.

Vulnerable software versions

PHP: 5.3.7 - 5.3.8

CPE2.3
External links

https://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
https://securityreason.com/securityalert/8525
https://svn.php.net/viewvc/?view=revision&revision=317183
https://www.byte.nl/blog/2011/09/23/security-bug-in-is_a-function-in-php-5-3-7-5-3-8/
https://www.securityfocus.com/archive/1/519770/30/0/threaded
https://bugs.php.net/bug.php?id=55475
https://bugzilla.redhat.com/show_bug.cgi?id=741020


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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