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RealplayerApplication · Realnetworks

CVE-2010-4385

HIGH · 9.3 CVSS v2.0 Published 2010-12-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
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
Integer overflow in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.4, RealPlayer Enterprise 2.1.2, Linux RealPlayer 11.0.2.1744, and possibly HelixPlayer 1.0.6 and other versions, allows remote attackers to have an unspecified impact via crafted frame dimensions in an SIPR stream.

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 · moderate confidence

Integer overflow vulnerability in RealNetworks RealPlayer when parsing SIPR streams with crafted frame dimensions. The overflow occurs when processing malformed stream data, potentially allowing remote code execution by an attacker via a specially crafted media file.

MitigationUpdate RealPlayer to the latest version or apply vendor-supplied patches. Remove or disable vulnerable RealPlayer installations if updates are unavailable.

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
RealplayerApplication
Affected:= 11.0= 11.0.1= 11.0.2= 11.0.3= 11.0.4= 11.0.5= 11.1= 11.0.2.1744= 2.1.2
Realplayer SpApplication
Affected:= 1.0.0= 1.0.1= 1.0.2= 1.0.5= 1.1= 1.1.1= 1.1.2= 1.1.3= 1.1.4

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
Complete
Integrity
Complete
Availability
Complete

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

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. Verify RealPlayer installation
    Check for RealPlayer executable in typical installation paths such as C:\Program Files\Real\RealPlayer\ or C:\Program Files (x86)\Real\RealPlayer\. Look for files named RealPlayer.exe, realplay.exe, or similar.
    Affected if RealPlayer is not found in standard installation directories, the software is not present.
  2. Identify installed RealPlayer version
    Right-click the RealPlayer executable, select Properties, and view the Version tab. Alternatively, run 'wmic product get name,version' or check Add/Remove Programs for the installed version.
    Affected if The installed version matches one of the affected versions: 11.0, 11.0.1, 11.0.2, 11.0.3, 11.0.4, 11.0.5, 11.1, 11.0.2.1744, 2.1.2 (RealPlayer) or 1.0.0, 1.0.1, 1.0.2, 1.0.5, 1.1, 1.1.1, 1.1.2, 1.1.3, 1.1.4 (RealPlayer SP).
  3. Confirm SIPR stream parsing capability
    SIPR (Silent Period Immediately after Relay) stream parsing is a feature of the RealPlayer media engine handling streaming protocols. There is no user-configurable setting to disable this; it is part of the core media parsing functionality.
    Affected if RealPlayer is installed and capable of playing media files, the SIPR stream parser is active by default.
  4. Check for malformed media file handling
    This vulnerability is triggered when RealPlayer attempts to parse a specially crafted SIPR stream with malformed frame dimensions. There is no log or config to inspect; the issue is in the media parsing engine itself.
    Affected if RealPlayer processes a crafted SIPR stream with malicious frame dimension data, which would occur during playback of a specially crafted media file.

A user is affected if RealPlayer or RealPlayer SP is installed and matches one of the vulnerable versions listed, as the SIPR stream parsing vulnerability exists in the media parsing engine by default.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update RealPlayer to the latest version or apply vendor-supplied patches. Remove or disable vulnerable RealPlayer installations if updates are unavailable.

Fix this in Realplayer Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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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-2010-4385 in production — separate from our analysis above.

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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
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