PHP up to 5.1 ext/shmop/shmop.c shmop_read third numeric error

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6.6	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in PHP. This affects the function shmop_read of the file ext/shmop/shmop.c. This manipulation of the argument third causes numeric error. The identification of this vulnerability is CVE-2011-1092. Furthermore, there is an exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in PHP (Programming Language Software) and classified as critical. Affected by this vulnerability is the function shmop_read of the file ext/shmop/shmop.c. The manipulation of the argument third with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in ext/shmop/shmop.c in PHP before 5.3.6 allows context-dependent attackers to cause a denial of service (crash) and possibly read sensitive memory via a large third argument to the shmop_read function.

The weakness was shared 03/12/2011 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2011-1092 since 02/24/2011. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 57925 (Debian DSA-2408-1 : php5 - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119638 (Apple Mac OS X Lion v10.7.2 and Security Update 2011-006 Not Installed (APPLE-SA-2011-10-12-3)).

Upgrading to version 5.1.0 eliminates this vulnerability. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (65988), Exploit-DB (16966), Tenable (57925), SecurityFocus (BID 46786†) and OSVDB (71598†). The entries VDB-56106, VDB-56894, VDB-56891 and VDB-56888 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Programming Language Software

Name

• PHP

Version

• 0.0.1
• 0.1
• 0.1.1
• 0.1.9.1
• 0.1.9.1b
• 0.1.9.2
• 0.1a
• 0.2
• 0.2.1
• 0.2.2
• 0.3
• 0.3.1
• 0.3.2
• 0.3.2.3
• 0.3.2.6
• 0.3.7c
• 0.4
• 0.4.0
• 0.4.2
• 0.4.5
• 0.4.6
• 0.4.7
• 0.4.7.1
• 0.5
• 0.5.0.1
• 0.5.1
• 0.5.2
• 0.6
• 0.6.1
• 0.6.6
• 0.7
• 0.7.0
• 0.7.1
• 0.7.2
• 0.7.7
• 0.7a
• 0.8
• 0.8.1
• 0.8.2
• 0.9
• 0.9 Beta
• 0.9.0
• 0.9.1
• 0.10
• 0.10.1
• 0.10.3
• 0.12-3+deb8u1
• 0.21
• 0.46
• 0.50
• 0.53
• 0.57
• 0.71
• 0.80
• 0.92
• 0.95
• 0.96
• 0.98
• 0.99
• 1
• 1.0
• 1.0 Beta
• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.4
• 1.0.12
• 1.0b
• 1.0b1
• 1.0b2
• 1.00
• 1.01
• 1.04
• 1.06
• 1.1
• 1.1.0
• 1.1.01
• 1.1.02
• 1.1.1
• 1.1.2
• 1.1a
• 1.2
• 1.2.0
• 1.2.06
• 1.2.1
• 1.2.2
• 1.2.5
• 1.2.5a
• 1.2.7
• 1.2.7pl1
• 1.2.7_pl1
• 1.3
• 1.3.0
• 1.3.1
• 1.3F
• 1.4
• 1.4.0
• 1.5
• 1.5.1
• 1.5.2
• 1.5.5
• 1.6
• 1.6.1
• 1.6.7
• 1.6.8
• 1.7
• 1.7.0
• 1.7.8
• 1.8
• 1.8c
• 1.9
• 1.9.3
• 1.9.6
• 1.10.1
• 1.10.2
• 1.16.0
• 1.20
• 1.21
• 1.25
• 1.27pl1
• 1.30
• 1.52
• 1.61
• 1.79
• 2.0
• 2.0.0
• 2.0.0-RC4
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0b10
• 2.0beta1
• 2.1
• 2.1.0
• 2.1.1
• 2.1.4
• 2.1.5
• 2.2
• 2.2.1
• 2.2.2
• 2.2.5
• 2.2.7
• 2.2.8
• 2.3
• 2.3.2
• 2.4
• 2.5
• 2.5.1.1
• 2.6
• 2.6.1
• 2.7
• 2.7.1
• 2.7.3
• 2.8.0
• 2.8.2
• 2.8.17
• 2.13
• 2.21
• 2.36
• 2.46
• 2.84
• 3
• 3.0
• 3.0-1
• 3.0-2
• 3.0.0
• 3.0.1
• 3.0.1.6
• 3.0.1.7
• 3.0.1.8
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8
• 3.0.9
• 3.0.10
• 3.0.11
• 3.0.12
• 3.0.13
• 3.0.14
• 3.0.15
• 3.0.16
• 3.0.17
• 3.0.18
• 3.0.21
• 3.1
• 3.1.1
• 3.1r
• 3.2.0
• 3.2.2
• 3.3
• 3.3.0
• 3.3.2
• 3.4
• 3.7
• 3.9.1
• 3.9.2
• 3.43
• 3.288.1
• 4
• 4.0
• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.0.4pl1
• 4.0.5
• 4.0.6
• 4.0.7
• 4.00
• 4.01
• 4.1
• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.2
• 4.2.0
• 4.2.1
• 4.2.2
• 4.2.3
• 4.2.4
• 4.3
• 4.3.0
• 4.3.1
• 4.3.2
• 4.3.3
• 4.3.4
• 4.3.5
• 4.3.6
• 4.3.7
• 4.3.8
• 4.3.9
• 4.3.10
• 4.3.11
• 4.4
• 4.4.0
• 4.4.1
• 4.4.1a
• 4.4.2
• 4.4.3
• 4.4.4
• 4.4.5
• 4.4.6
• 4.4.7
• 4.4.8
• 4.4.9
• 4.5
• 4.8
• 4.70
• 4.86
• 5
• 5.0
• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.01
• 5.01 Service Pack
• 5.1

License

• open-source

Website

• Product: https://www.php.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 57925
Nessus Name: Debian DSA-2408-1 : php5 - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 71135
OpenVAS Name: Debian Security Advisory DSA 2408-1 (php5)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: PHP 5.1.0
PaloAlto IPS: 🔍

Timelineinfo

02/24/2011 🔍
03/08/2011 +12 days 🔍
03/08/2011 +0 days 🔍
03/12/2011 +4 days 🔍
03/15/2011 +2 days 🔍
04/10/2011 +26 days 🔍
02/13/2012 +308 days 🔍
02/14/2012 +1 days 🔍
03/20/2015 +1130 days 🔍
03/14/2016 +360 days 🔍
01/19/2025 +3233 days 🔍

Sourcesinfo

Product: php.org

Advisory: DSA-2408
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-1092 (🔍)
GCVE (CVE): GCVE-0-2011-1092
GCVE (VulDB): GCVE-100-56839

OVAL: 🔍

X-Force: 65988
SecurityFocus: 46786 - PHP 'shmop_read()' Remote Integer Overflow Vulnerability
OSVDB: 71598 - PHP ext/shmop/shmop.c shmop_read Function Overflow
Vulnerability Center: 57274 - PHP < 5.3.6 shmop_read Integer Overflow Vulnerability Allows Remote DoS and Information Disclosure, Medium
Vupen: ADV-2011-0744

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/20/2015 16:16
Updated: 01/19/2025 05:41
Changes: 03/20/2015 16:16 (75), 02/01/2019 09:30 (11), 10/19/2021 16:14 (3), 10/19/2021 16:21 (1), 08/25/2024 05:07 (16), 01/19/2025 05:41 (4)
Complete: 🔍
Cache ID: 216:AD6:103

Be aware that VulDB is the high quality source for vulnerability data.

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