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Libxxf86dgaApplication · X

CVE-2013-2000

MEDIUM · 6.8 CVSS v2.0 Published 2013-06-15
Fix available
A fix is available. Upgrade to after 1.1.3 or later.
See remediation →
77/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Multiple buffer overflows in X.org libXxf86dga 1.1.3 and earlier allow X servers to cause a denial of service (crash) and possibly execute arbitrary code via crafted length or index values to the (1) XDGAQueryModes and (2) XDGASetMode functions.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Buffer overflow vulnerabilities in libXxf86dga (versions 1.1.3 and earlier) in the XDGAQueryModes and XDGASetMode functions allow remote attackers to cause denial of service (crash) or potentially execute arbitrary code via crafted length or index values sent to the X server.

MitigationUpdate libXxf86dga to a patched version newer than 1.1.3, or apply vendor security patches; limit X server exposure to trusted clients as a defense-in-depth measure.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Libxxf86dgaApplication
Affected:<= 1.1.3= 1.0.1= 1.0.2= 1.0.99.1= 1.0.99.2= 1.1= 1.1.1= 1.1.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
M
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed libXxf86dga version
    Run 'dpkg -l libxxf86dga' on Debian-based systems or 'rpm -qa | grep -i libxxf86dga' on RHEL-based systems to retrieve the installed package version
    Affected if The installed version matches any of the following: 1.0.1, 1.0.2, 1.0.99.1, 1.0.99.2, 1.1, 1.1.1, 1.1.2, or any version 1.1.3 or earlier
  2. Confirm DGA extension is available
    Check if the X server has the DGA extension loaded by running 'xdpyinfo' or inspecting the X server log (typically /var/log/Xorg.0.log) for lines containing 'XF86DGA' or 'DGA'
    Affected if The DGA extension is reported as available by xdpyinfo or present in the X server log
  3. Verify DGA is accessible to clients
    Query the X server for DGA support using 'xdgaprobe' if available, or check X server configuration files for any restrictions on DGA access (such as in xorg.conf or X server command-line options)
    Affected if The DGA extension is enabled and accessible without explicit restrictions blocking client access

You are affected if libXxf86dga version 1.1.3 or earlier is installed AND the X server DGA extension is loaded and accessible to clients

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to a release after 1.1.3
Interim mitigation

Update libXxf86dga to a patched version newer than 1.1.3, or apply vendor security patches; limit X server exposure to trusted clients as a defense-in-depth measure.

Fix this in Libxxf86dga Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA3.0 h
16.0 hours of engineering $2,760
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2013-2000 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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