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FirefoxWeb browser · Mozilla

CVE-2010-0175

HIGH · 9.3 CVSS v2.0 Published 2010-04-05
Fix available
A fix is available. Upgrade to after 3.0.17 or later.
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
Use-after-free vulnerability in the nsTreeSelection implementation in Mozilla Firefox before 3.0.19 and 3.5.x before 3.5.9, Thunderbird before 3.0.4, and SeaMonkey before 2.0.4 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via unspecified vectors that trigger a call to the handler for the select event for XUL tree items.

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

Use-after-free vulnerability in Mozilla's nsTreeSelection implementation allows remote attackers to execute arbitrary code via unspecified vectors that trigger a select event handler for XUL tree items. The memory corruption occurs when the selection object is accessed after being freed, leading to potential code execution or denial of service.

MitigationUpdate affected Mozilla products to patched versions: Firefox 3.0.19/3.5.9 or later, Thunderbird 3.0.4 or later, SeaMonkey 2.0.4 or later. Apply vendor security patches immediately as CVSS 9.3 indicates critical severity.

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
FirefoxWeb browser
Affected:<= 3.0.17= 0.1= 0.2= 0.3= 0.4= 0.5= 0.6= 0.6.1= 0.7= 0.7.1= 0.8= 0.9
ThunderbirdApplication
Affected:<= 3.0.3= 0.1= 0.2= 0.3= 0.4= 0.5= 0.6= 0.7= 0.7.1= 0.7.2= 0.7.3= 0.8
SeamonkeyApplication
Affected:<= 2.0.3= 1.0= 1.0.1= 1.0.2= 1.0.3= 1.0.4= 1.0.5= 1.0.6= 1.0.7= 1.0.8= 1.0.9= 1.1

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. Identify installed Firefox version
    Run 'firefox -v' from command line or check Help > About Firefox in the application menu
    Affected if Version is 3.0.x at 3.0.17 or lower, or any of 0.1 through 0.9 listed in the affected versions
  2. Identify installed Thunderbird version
    Run 'thunderbird -v' from command line or check Help > About Thunderbird in the application menu
    Affected if Version is 3.0.x at 3.0.3 or lower, or any of 0.1 through 0.8 listed in the affected versions
  3. Identify installed SeaMonkey version
    Run 'seamonkey -v' from command line or check Help > About SeaMonkey in the application menu
    Affected if Version is 2.0.x at 2.0.3 or lower, or any of 1.0 through 1.1 listed in the affected versions
  4. Determine if XUL content is processed
    Check if the application handles XUL-based web content or email messages with XUL elements - look for any use of nsTreeSelection with XUL tree widgets in the environment
    Affected if The application processes XUL tree selections and an attacker can trigger a select event handler on freed selection objects

A user is affected if they run any of the listed Mozilla products at the specific versions and the application processes XUL content that could trigger the select event handler on freed nsTreeSelection objects.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 3.0.17
Interim mitigation

Update affected Mozilla products to patched versions: Firefox 3.0.19/3.5.9 or later, Thunderbird 3.0.4 or later, SeaMonkey 2.0.4 or later. Apply vendor security patches immediately as CVSS 9.3 indicates critical severity.

Recommended fix High confidence

Firefox 3.0.19 or 3.5.9; Thunderbird 3.0.4; SeaMonkey 2.0.4 (depending on product and branch)

  1. 1. Identify the currently installed Mozilla product (Firefox, Thunderbird, or SeaMonkey) and its exact version
  2. 2. For Firefox users: Upgrade to Firefox 3.0.19 (if using 3.0.x branch) or Firefox 3.5.9 (if using 3.5.x branch)
  3. 3. For Thunderbird users: Upgrade to Thunderbird 3.0.4
  4. 4. For SeaMonkey users: Upgrade to SeaMonkey 2.0.4
  5. 5. After upgrading, verify the new version is installed by checking Help > About
Caveat Upgrading to newer major versions may cause compatibility issues with older extensions or plugins; some legacy add-ons may no longer function

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Firefox Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,040
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,664.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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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-2010-0175 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
  • No spam, self-promotion, credentials, or personal data