ChromeWeb browser · Google
CVE-2011-1109
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 · uneditedGoogle Chrome before 9.0.597.107 does not properly process nodes in Cascading Style Sheets (CSS) stylesheets, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors that lead to a "stale pointer."
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 confidenceGoogle Chrome before 9.0.597.107 contains a stale pointer vulnerability in its CSS stylesheet node processing code. The browser fails to properly manage memory when processing CSS nodes, allowing remote attackers to trigger use-after-free conditions via crafted web content, leading to denial of service or potentially arbitrary code execution.
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
ChromeWeb browser
< 9.0.597.107
SafariWeb browser
< 5.0.6< 10.5< 5.0CVSS 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
- Low
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/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 checksWork through these to decide whether this CVE applies to you.
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Check Google Chrome versionOpen Chrome and navigate to chrome://version or click Help > About Google ChromeAffected if The displayed version is less than 9.0.597.107
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Check Apple Safari versionOpen Safari and click Safari > About SafariAffected if The displayed version is less than 5.0.6
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Check Apple iTunes versionOpen iTunes and click iTunes > About iTunesAffected if The displayed version is less than 10.5
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Check if CSS stylesheets are processedThe vulnerability is triggered when the browser processes malicious CSS stylesheets in web content. No special configuration needs to be enabled - this affects all users who browse web content.Affected if The browser processes crafted CSS content from untrusted sources
A system is affected if any of the installed browsers (Chrome < 9.0.597.107 or Safari < 5.0.6) process web content containing malicious CSS stylesheet nodes.
Generated from the published advisory. Verify against your own configuration.
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 data5.05.0.69.0.597.107
Upgrade Google Chrome to version 9.0.597.107 or later. In enterprise environments, deploy the browser update via software distribution mechanisms and verify successful installation across affected systems.
Fix this in Chrome
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-1109 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2011-1109 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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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