CVE-2012-1142

Description

From CVE.org

FreeType before 2.4.9, as used in Mozilla Firefox Mobile before 10.0.4 and other products, allows remote attackers to cause a denial of service (invalid heap write operation and memory corruption) or possibly execute arbitrary code via crafted glyph-outline data in a font.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v2 Score Breakdown

Red HatNVDcve.org
Base Score6.89.3N/A
Attack VectorNetworkNetworkN/A
Access ComplexityMediumMediumN/A
AuthenticationNoneNoneN/A
Confidentiality ImpactPartialCompleteN/A
Integrity ImpactPartialCompleteN/A
Availability ImpactPartialCompleteN/A

Vector

Red Hat: AV:N/AC:M/Au:N/C:P/I:P/A:P

NVD: AV:N/AC:M/Au:N/C:C/I:C/A:C

Understanding the Weakness (CWE)

CWE-839

Integrity,Confidentiality,Availability

Technical Impact: Modify Application Data; Execute Unauthorized Code or Commands

An attacker could modify the structure of the message or data being sent to the downstream component, possibly injecting commands.

Availability

Technical Impact: DoS: Resource Consumption (Other)

in some contexts, a negative value could lead to resource consumption.

Confidentiality,Integrity

Technical Impact: Modify Memory; Read Memory

If a negative value is used to access memory, buffers, or other indexable structures, it could access memory outside the bounds of the buffer.

Acknowledgements

Red Hat would like to thank Mateusz Jurczyk (Google Security Team) for reporting this issue.

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