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Linux KernelOperating system · Linux

CVE-2010-0003

MEDIUM · 5.4 CVSS v2.0 Published 2010-01-26
Fix available
A fix is available. Upgrade to 2.6.32.4 or later.
See remediation →
59/100
Remediation priority · Elevated
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
The print_fatal_signal function in kernel/signal.c in the Linux kernel before 2.6.32.4 on the i386 platform, when print-fatal-signals is enabled, allows local users to discover the contents of arbitrary memory locations by jumping to an address and then reading a log file, and might allow local users to cause a denial of service (system slowdown or crash) by jumping to an address.

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

The print_fatal_signal function in kernel/signal.c in Linux kernel before 2.6.32.4 on i386 allows local users to discover arbitrary memory contents when the print-fatal-signals debugging feature is enabled, by jumping to an address and reading the resulting log file output.

MitigationDisable the print-fatal-signals kernel parameter/compile-time option or upgrade to kernel 2.6.32.4 or later.

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
Linux KernelOperating system
Affected:< 2.6.32.4
Debian LinuxOperating system
Affected:= 4.0= 5.0

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
Local
Complexity
M
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Complete

AV:L/AC:M/Au:N/C:P/I:N/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. Check kernel version
    Run 'uname -r' or 'cat /proc/version' to get the running kernel version
    Affected if Kernel version is earlier than 2.6.32.4
  2. Check system architecture
    Run 'uname -m' to identify the system architecture
    Affected if System is running on i386 (32-bit x86) architecture
  3. Check if print-fatal-signals debugging feature is enabled
    Examine /proc/cmdline for the 'print-fatal-signals' kernel parameter, or check the kernel config file in /boot/config-$(uname -r) for CONFIG_PRINT_FATAL_SIGNALS=y
    Affected if The print-fatal-signals debugging feature is enabled in the kernel boot parameters or was compiled in

A system is affected only if it runs a kernel version earlier than 2.6.32.4 on i386 architecture AND has the print-fatal-signals debugging feature enabled.

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 2.6.32.4 or later
Fixed in 2.6.32.4
Interim mitigation

Disable the print-fatal-signals kernel parameter/compile-time option or upgrade to kernel 2.6.32.4 or later.

Fix this in Linux Kernel 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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Scan for this in your stack

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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-2010-0003 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