CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9	$0-$5k	0.00

A vulnerability classified as critical has been found in Pango 1.28.3. Affected is the function hb_buffer_ensure of the file hb-buffer.c of the component OpenType Font. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The hb_buffer_ensure function in hb-buffer.c in HarfBuzz, as used in Pango 1.28.3, Firefox, and other products, does not verify that memory reallocations succeed, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or possibly execute arbitrary code via crafted OpenType font data that triggers use of an incorrect index.

The weakness was shared 03/07/2011 with Mozilla (Website). The advisory is available at build.opensuse.org. This vulnerability is traded as CVE-2011-0064 since 12/21/2010. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 68212 (Oracle Linux 6 : pango (ELSA-2011-0309)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (65770) and Tenable (68212).

Productinfo

Name

• Pango

Version

• 1.28.3

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
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: Null pointer dereference
CWE: CWE-476 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 68212
Nessus Name: Oracle Linux 6 : pango (ELSA-2011-0309)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 69113
OpenVAS Name: Debian Security Advisory DSA 2178-1 (pango1.0)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: cgit.freedesktop.org

Timelineinfo

12/21/2010 🔍
03/01/2011 +70 days 🔍
03/01/2011 +0 days 🔍
03/02/2011 +1 days 🔍
03/03/2011 +1 days 🔍
03/07/2011 +4 days 🔍
03/07/2011 +0 days 🔍
03/08/2011 +1 days 🔍
07/12/2013 +857 days 🔍
03/20/2015 +616 days 🔍
10/19/2021 +2405 days 🔍

Sourcesinfo

Advisory: RHSA-2011:0309
Organization: Mozilla
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-0064 (🔍)
OVAL: 🔍

X-Force: 65770
SecurityTracker: 1025145 - Pango Null Pointer Dereference in hb_buffer_add_glyph() May Let Remote Users Execute Arbitrary Code
Vulnerability Center: 30235 - Pango 1.28.3 Remote Arbitrary code Execution or DoS Vulnerability via a Crafted OpenType Font, Medium
SecurityFocus: 46632 - Pango 'hb_buffer_ensure()' Buffer Overflow Vulnerability
Secunia: 43559 - Debian update for pango1.0, Moderately Critical
Vupen: ADV-2011-0543

Entryinfo

Created: 03/20/2015 16:16
Updated: 10/19/2021 08:26
Changes: 03/20/2015 16:16 (61), 03/18/2017 02:52 (20), 10/19/2021 08:22 (4), 10/19/2021 08:24 (1), 10/19/2021 08:26 (2)
Complete: 🔍

Discussion

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