Vulnerability Monitor

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CVE-2011-2895


The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2896.


Security Impact Summary

CVE-2011-2895 is a security vulnerability that . Impacting 5 products from freetype, from x, from freebsd and 2 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2011, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.


Published

2011-08-19T17:55:03.037

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 9.3 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

8.6

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-119

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application freetype freetype 2.1.9 Yes
Application x libxfont ≤ 1.4.3 Yes
Application x libxfont 1.2.0 Yes
Application x libxfont 1.2.1 Yes
Application x libxfont 1.2.2 Yes
Application x libxfont 1.2.3 Yes
Application x libxfont 1.2.4 Yes
Application x libxfont 1.2.5 Yes
Application x libxfont 1.2.6 Yes
Application x libxfont 1.2.7 Yes
Application x libxfont 1.2.8 Yes
Application x libxfont 1.2.9 Yes
Application x libxfont 1.3.0 Yes
Application x libxfont 1.3.1 Yes
Application x libxfont 1.3.2 Yes
Application x libxfont 1.3.3 Yes
Application x libxfont 1.3.4 Yes
Application x libxfont 1.4.0 Yes
Application x libxfont 1.4.1 Yes
Application x libxfont 1.4.2 Yes
Operating System freebsd freebsd * Yes
Operating System netbsd netbsd * Yes
Operating System openbsd openbsd ≤ 3.7 Yes
Operating System openbsd openbsd 2.0 Yes
Operating System openbsd openbsd 2.1 Yes
Operating System openbsd openbsd 2.2 Yes
Operating System openbsd openbsd 2.3 Yes
Operating System openbsd openbsd 2.4 Yes
Operating System openbsd openbsd 2.5 Yes
Operating System openbsd openbsd 2.6 Yes
Operating System openbsd openbsd 2.7 Yes
Operating System openbsd openbsd 2.8 Yes
Operating System openbsd openbsd 2.9 Yes
Operating System openbsd openbsd 3.0 Yes
Operating System openbsd openbsd 3.1 Yes
Operating System openbsd openbsd 3.2 Yes
Operating System openbsd openbsd 3.3 Yes
Operating System openbsd openbsd 3.4 Yes
Operating System openbsd openbsd 3.5 Yes
Operating System openbsd openbsd 3.6 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For freetype's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.