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CVE-2006-1856

Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux...

7.5 High

Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions.

Exploit likelihood

3.05%Up 0.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions.

Record
CVE-2006-1856
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE List No score

Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions.

Record
CVE-2006-1856
Updated
2026-11-02
EUVDEUVD-2006-1856 No score

Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions.

Record
EUVD-2006-1856
Updated
2026-11-03
GitHub AdvisoriesGHSA-7whw-v9g4-89gc No score

Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux...

Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions.

Record
GHSA-7whw-v9g4-89gc
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
kernel-source-2.6.8
Debian:3.1
From an advisory covering 16 CVEs
 before 2.6.8-16sarge5, plus listed versions
2.6.8-162.6.8-16sarge12.6.8-16sarge22.6.8-16sarge32.6.8-16sarge4
2.6.8-16sarge5
fai-kernels
Debian:3.1
From an advisory covering 16 CVEs
 before 1.9.1sarge4, plus listed versions
1.9.11.9.1sarge11.9.1sarge21.9.1sarge3
1.9.1sarge4
kernel
Red Hat:enterprise_linux:4::as
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-doc
Red Hat:enterprise_linux:4::as
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-hugemem
Red Hat:enterprise_linux:4::as
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-largesmp
Red Hat:enterprise_linux:4::as
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
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Affected packages
PackageAffectedFixed
kernel-smp
Red Hat:enterprise_linux:4::as
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-doc
Red Hat:enterprise_linux:4::desktop
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-hugemem
Red Hat:enterprise_linux:4::desktop
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-largesmp
Red Hat:enterprise_linux:4::desktop
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-smp
Red Hat:enterprise_linux:4::desktop
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel
Red Hat:enterprise_linux:4::es
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-doc
Red Hat:enterprise_linux:4::es
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-hugemem
Red Hat:enterprise_linux:4::es
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-largesmp
Red Hat:enterprise_linux:4::es
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-smp
Red Hat:enterprise_linux:4::es
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel
Red Hat:enterprise_linux:4::ws
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-doc
Red Hat:enterprise_linux:4::ws
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-hugemem
Red Hat:enterprise_linux:4::ws
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-largesmp
Red Hat:enterprise_linux:4::ws
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-smp
Red Hat:enterprise_linux:4::ws
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 17 CVEs
 before 0:2.6.9-34.0.1.EL
0:2.6.9-34.0.1.EL

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.

In short

CVE-2006-1856 is a high vulnerability (CVSS 7.5) in Linux Kernel, published May 19, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.05%, the 87th percentile. No source names a fixed version.

References

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