Debian LinuxOperating system · Debian
CVE-2016-2806
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 · uneditedMultiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 46.0 and Firefox ESR 45.x before 45.1 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
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 confidenceMultiple memory corruption vulnerabilities in Mozilla Firefox's browser engine allow remote attackers to crash the application or potentially achieve arbitrary code execution through unknown vectors. This is a classic memory safety issue in the browser rendering engine.
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
Debian LinuxOperating system
= 8.0
FirefoxWeb browser
<= 45.0.2= 45.0.1= 42.1= 13.1= 13.2= 12.0CVSS 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
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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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Identify your operating systemRun 'lsb_release -a' on Debian/Ubuntu, 'cat /etc/os-release' on SUSE/openSUSE, or check system settings to determine your distribution and versionAffected if The system is Debian 8.0, openSUSE Leap 42.1, openSUSE 13.1, openSUSE 13.2, or SUSE Linux Enterprise 12.0
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Check if Firefox is installedRun 'which firefox' or look for Firefox in your applications menuAffected if Firefox is installed on the system
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Determine installed Firefox versionRun 'firefox --version' or navigate to 'Help > About Firefox' within the applicationAffected if The returned version is 45.0.1, 45.0.2, or any version <= 45.0.2 (such as 45.0, 44.x, 43.x, etc.)
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Verify browser engine usageConfirm Firefox is used as the primary or secondary browser; the vulnerability exists in the browser rendering engine itselfAffected if Firefox is actively used to render web content
You are affected if Firefox is installed on Debian 8.0, openSUSE Leap 42.1, openSUSE 13.1/13.2, or SUSE Linux Enterprise 12.0 AND the installed Firefox version is 45.0.1, 45.0.2, or any earlier version.
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 dataUpgrade Firefox to version 46.0 or later, or Firefox ESR to 45.1 or later to remediate these vulnerabilities.
Fix this in Debian Linux
Scoped from the published advisory
- Consultation1.0 h
- Implementation2.0 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 $1,664.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-2806 — 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 sources- www.mozilla.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- rhn.redhat.com
- www.debian.org
- www.oracle.com
- www.securitytracker.com
- www.ubuntu.com
- www.ubuntu.com
- www.ubuntu.com
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- security.gentoo.org
- nvd.nist.gov
Practitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2016-2806 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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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.
- 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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