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CVE-2012-0810

The int3 handler in the Linux kernel before 3.3 relies on a per-CPU debug stack, which allows...

5.5 Medium

CVE-2012-0810 is a medium vulnerability (CVSS 5.5) in Linux Kernel, published February 12, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.38%, the 32nd percentile. No source names a fixed version.

What does this mean?
Severity
5.5 MediumCVSS 3.1, NVD
Exploit chance
0.38%EPSS, 32nd percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

The int3 handler in the Linux kernel before 3.3 relies on a per-CPU debug stack, which allows local users to cause a denial of service (stack corruption and panic) via a crafted application that triggers certain lock contention.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.38%Down 0.5 points since Feb 4, 2022
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
kernel-rt
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-debug
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-debug-debuginfo
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-debug-devel
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-debuginfo
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-debuginfo-common-x86_64
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-devel
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-doc
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-firmware
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-trace
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
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Affected packages
PackageAffectedFixed
kernel-rt-trace-debuginfo
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-trace-devel
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-vanilla
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-vanilla-debuginfo
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt
kernel-rt-vanilla-devel
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 11 CVEs
before 0:3.0.18-rt34.53.el6rt
0:3.0.18-rt34.53.el6rt

What each source reports

NVD Score used5.5

The int3 handler in the Linux kernel before 3.3 relies on a per-CPU debug stack, which allows local users to cause a denial of service (stack corruption and panic) via a crafted application that triggers certain lock contention.

Record
CVE-2012-0810
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
4.9 MediumAV:L/AC:L/Au:N/C:N/I:N/A:C
Weakness
CWE-400
Updated
2026-11-02
CVE ListNo score

The int3 handler in the Linux kernel before 3.3 relies on a per-CPU debug stack, which allows local users to cause a denial of service (stack corruption and panic) via a crafted application that triggers certain lock contention.

Record
CVE-2012-0810
Updated
2026-11-02
EUVDEUVD-2012-0837No score

The int3 handler in the Linux kernel before 3.3 relies on a per-CPU debug stack, which allows local users to cause a denial of service (stack corruption and panic) via a crafted application that triggers certain lock contention.

Record
EUVD-2012-0837
Updated
2026-11-03
GitHub AdvisoriesGHSA-xgx6-xwch-wmqqNo score

The int3 handler in the Linux kernel before 3.3 relies on a per-CPU debug stack, which allows...

The int3 handler in the Linux kernel before 3.3 relies on a per-CPU debug stack, which allows local users to cause a denial of service (stack corruption and panic) via a crafted application that triggers certain lock contention.

Record
GHSA-xgx6-xwch-wmqq
Updated
2026-11-02

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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