Every CVE Search/ Get API key

CVE-2009-4308

The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel...

7.1 High

The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference), and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal.

Exploit likelihood

3.47%Up 0.1 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.1

The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference), and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal.

Record
CVE-2009-4308
CVSS 2.0
7.1 HighAV:N/AC:M/Au:N/C:N/I:N/A:C
Weakness
CWE-399
Updated
2026-11-02
CVE List No score

The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference), and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal.

Record
CVE-2009-4308
Updated
2026-11-02
EUVDEUVD-2009-4276 No score

The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference), and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal.

Record
EUVD-2009-4276
Updated
2026-11-03
GitHub AdvisoriesGHSA-vrr8-qf64-vrjr No score

The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel...

The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference), and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal.

Record
GHSA-vrr8-qf64-vrjr
Updated
2026-11-02
OSVBELL-CVE-2009-4308 7.1

CVE-2009-4308 does not affect BellSoft software

Record
BELL-CVE-2009-4308
CVSS 2.0
7.1 HighAV:N/AC:M/Au:N/C:N/I:N/A:C
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
linux-2.6.24
Debian:4.0
From an advisory covering 18 CVEs
 before 2.6.24-6~etchnhalf.9etch3, plus listed versions
2.6.24-5~etchnhalf.12.6.24-6~etchnhalf.12.6.24-6~etchnhalf.22.6.24-6~etchnhalf.32.6.24-6~etchnhalf.4
Show 10 moreShow less
2.6.24-6~etchnhalf.52.6.24-6~etchnhalf.62.6.24-6~etchnhalf.72.6.24-6~etchnhalf.82.6.24-6~etchnhalf.8etch12.6.24-6~etchnhalf.8etch22.6.24-6~etchnhalf.8etch32.6.24-6~etchnhalf.92.6.24-6~etchnhalf.9etch12.6.24-6~etchnhalf.9etch2
2.6.24-6~etchnhalf.9etch3
kernel
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-PAE
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-debug
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-debuginfo-common
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
Show 24 moreShow less
Affected packages
PackageAffectedFixed
kernel-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-doc
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-headers
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-xen
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-PAE
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-debug
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-debuginfo-common
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-doc
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-headers
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-kdump
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-kdump-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-kdump-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-xen
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
 before 0:2.6.18-164.15.1.el5
0:2.6.18-164.15.1.el5

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-2009-4308 is a high vulnerability (CVSS 7.1) in Linux Kernel, published December 13, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.47%, the 89th percentile. No source names a fixed version.

References

Show 53 moreShow less
Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open