CVE & CISA-KEV Catalog

CVE-2014-7826

HIGH
7.8
CVSS v3
NVD

Description

kernel/trace/trace_syscalls.c in the Linux kernel through 3.17.2 does not properly handle private syscall numbers during use of the ftrace subsystem, which allows local users to gain privileges or cause a denial of service (invalid pointer dereference) via a crafted application.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available
linuxDebian
Fixed in:3.16.7-ckt2-1CVE-2014-7826
Fixed in:3.16.7-ckt2-1CVE-2014-7826
Fixed in:3.16.7-ckt2-1CVE-2014-7826
Fixed in:3.16.7-ckt2-1CVE-2014-7826
linuxUbuntu
Fixed in:3.13.0-43.72USN-2446-1
linux-image-3.13.0-43-genericUbuntu
Fixed in:3.13.0-43.72USN-2446-1
linux-image-3.13.0-43-generic-lpaeUbuntu
Fixed in:3.13.0-43.72USN-2446-1
linux-image-3.13.0-43-lowlatencyUbuntu
Fixed in:3.13.0-43.72USN-2446-1
linux-image-3.13.0-43-powerpc-e500Ubuntu
Fixed in:3.13.0-43.72USN-2446-1
linux-image-3.13.0-43-powerpc-e500mcUbuntu
Fixed in:3.13.0-43.72USN-2446-1
linux-image-3.13.0-43-powerpc-smpUbuntu
Fixed in:3.13.0-43.72USN-2446-1
linux-image-3.13.0-43-powerpc64-embUbuntu
Fixed in:3.13.0-43.72USN-2446-1
linux-image-3.13.0-43-powerpc64-smpUbuntu
Fixed in:3.13.0-43.72USN-2446-1
linux-image-3.16.0-28-genericUbuntu
Fixed in:3.16.0-28.37~14.04.1USN-2447-1
linux-image-3.16.0-28-generic-lpaeUbuntu
Fixed in:3.16.0-28.37~14.04.1USN-2447-1
linux-image-3.16.0-28-lowlatencyUbuntu
Fixed in:3.16.0-28.37~14.04.1USN-2447-1
linux-image-3.16.0-28-powerpc-e500mcUbuntu
Fixed in:3.16.0-28.37~14.04.1USN-2447-1
linux-image-3.16.0-28-powerpc-smpUbuntu
Fixed in:3.16.0-28.37~14.04.1USN-2447-1
linux-image-3.16.0-28-powerpc64-embUbuntu
Fixed in:3.16.0-28.37~14.04.1USN-2447-1
linux-image-3.16.0-28-powerpc64-smpUbuntu
Fixed in:3.16.0-28.37~14.04.1USN-2447-1
linux-lts-utopicUbuntu
Fixed in:3.16.0-28.37~14.04.1USN-2447-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.59%probability of exploitation in 30 days
44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Other references1

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-21758High7.592%-Fix
CVE-2023-21547High7.588%-Fix
CVE-2014-3470Medium4.386%-Fix
CVE-2021-44224High8.282%-Fix
CVE-2016-0742High7.582%-Fix
CVE-2009-1386Medium5.080%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.