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CVE-2009-0745

The ext4_group_add function in fs/ext4/resize.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2...

4.9 Medium

CVE-2009-0745 is a medium vulnerability (CVSS 4.9) in Linux Kernel, published February 27, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. No source names a fixed version.

What does this mean?
Severity
4.9 MediumCVSS 2.0, NVD
Exploit chance
0.41%EPSS, 35th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

The ext4_group_add function in fs/ext4/resize.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not properly initialize the group descriptor during a resize (aka resize2fs) operation, which might allow local users to cause a denial of service (OOPS) by arranging for crafted values to be present in available memory.

Exploit likelihood

0.41%Down 1.1 points since Feb 4, 2022
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
linux-2.6
Debian:5.0
From an advisory covering 11 CVEs
before 2.6.26-13lenny2, plus listed versions
2.6.26-132.6.26-13lenny2~bpo40+1
2.6.26-13lenny2
linux-2.6.24
Debian:4.0
From an advisory covering 24 CVEs
before 2.6.24-6~etchnhalf.8etch1, 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 4 moreShow less
2.6.24-6~etchnhalf.52.6.24-6~etchnhalf.62.6.24-6~etchnhalf.72.6.24-6~etchnhalf.8
2.6.24-6~etchnhalf.8etch1
kernel
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-PAE
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-debug
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
Show 25 moreShow less
Affected packages
PackageAffectedFixed
kernel-debuginfo-common
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-doc
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-headers
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-xen
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-PAE
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-debug
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-debuginfo-common
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-doc
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-headers
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-kdump
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-kdump-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-kdump-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-xen
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 6 CVEs
before 0:2.6.18-164.el5
0:2.6.18-164.el5

What each source reports

NVD Score used4.9

The ext4_group_add function in fs/ext4/resize.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not properly initialize the group descriptor during a resize (aka resize2fs) operation, which might allow local users to cause a denial of service (OOPS) by arranging for crafted values to be present in available memory.

Record
CVE-2009-0745
CVSS 2.0
4.9 MediumAV:L/AC:L/Au:N/C:N/I:N/A:C
Weakness
CWE-20
Updated
2026-11-02
CVE ListNo score

The ext4_group_add function in fs/ext4/resize.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not properly initialize the group descriptor during a resize (aka resize2fs) operation, which might allow local users to cause a denial of service (OOPS) by arranging for crafted values to be present in available memory.

Record
CVE-2009-0745
Updated
2026-11-02
EUVDEUVD-2009-0745No score

The ext4_group_add function in fs/ext4/resize.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not properly initialize the group descriptor during a resize (aka resize2fs) operation, which might allow local users to cause a denial of service (OOPS) by arranging for crafted values to be present in available memory.

Record
EUVD-2009-0745
Updated
2026-11-03
GitHub AdvisoriesGHSA-pmh2-h42j-q27qNo score

The ext4_group_add function in fs/ext4/resize.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2...

The ext4_group_add function in fs/ext4/resize.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not properly initialize the group descriptor during a resize (aka resize2fs) operation, which might allow local users to cause a denial of service (OOPS) by arranging for crafted values to be present in available memory.

Record
GHSA-pmh2-h42j-q27q
Weakness
CWE-20
Updated
2026-11-02
OSVBELL-CVE-2009-07454.9

CVE-2009-0745 does not affect BellSoft software

Record
BELL-CVE-2009-0745
CVSS 2.0
4.9 MediumAV:L/AC:L/Au:N/C:N/I:N/A:C
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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