Upstream information

CVE-2009-4307 at MITRE

Description

The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 2.6.32-git6 allows user-assisted remote attackers to cause a denial of service (divide-by-zero error and panic) via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value).

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.1
Vector AV:N/AC:M/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete

Note from the SUSE Security Team

This issue affects only the ext4 filesystem. It was introduced in openSUSE 11.1 and SUSE Linux Enterprise 11, older products do not contain it and so are not affected.

SUSE Bugzilla entries: 564381 [RESOLVED / FIXED], 757278 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Server 11
  • ext4dev-kmp-default >= 0_2.6.27.42_0.1-7.1.24
  • ext4dev-kmp-pae >= 0_2.6.27.23_0.1-7.1.7
  • ext4dev-kmp-ppc64 >= 0_2.6.27.42_0.1-7.1.24
  • ext4dev-kmp-vmi >= 0_2.6.27.23_0.1-7.1.7
  • ext4dev-kmp-xen >= 0_2.6.27.23_0.1-7.1.7
  • iscsitarget-kmp-default >= 0.4.15_2.6.27.54_0.2-94.14.8
  • kernel-default >= 2.6.27.42-0.1.1
  • kernel-default-base >= 2.6.27.42-0.1.1
  • kernel-default-man >= 2.6.27.23-0.1.1
  • kernel-kdump >= 2.6.27.42-0.1.1
  • kernel-pae >= 2.6.27.23-0.1.1
  • kernel-pae-base >= 2.6.27.23-0.1.1
  • kernel-ppc64 >= 2.6.27.42-0.1.1
  • kernel-ppc64-base >= 2.6.27.42-0.1.1
  • kernel-source >= 2.6.27.42-0.1.1
  • kernel-syms >= 2.6.27.42-0.1.1
  • kernel-vmi >= 2.6.27.23-0.1.1
  • kernel-vmi-base >= 2.6.27.23-0.1.1
  • kernel-xen >= 2.6.27.23-0.1.1
  • kernel-xen-base >= 2.6.27.23-0.1.1
  • oracleasm-kmp-default >= 2.0.5_2.6.27.54_0.2-7.9.1
Patchnames:
slessp0-kernel
SUSE Linux Enterprise Server for SAP Applications 11
  • ext4dev-kmp-default >= 0_2.6.27.42_0.1-7.1.24
  • ext4dev-kmp-pae >= 0_2.6.27.23_0.1-7.1.7
  • ext4dev-kmp-ppc64 >= 0_2.6.27.23_0.1-7.1.7
  • ext4dev-kmp-vmi >= 0_2.6.27.23_0.1-7.1.7
  • ext4dev-kmp-xen >= 0_2.6.27.42_0.1-7.1.24
  • iscsitarget-kmp-default >= 0.4.15_2.6.27.54_0.2-94.14.8
  • kernel-default >= 2.6.27.42-0.1.1
  • kernel-default-base >= 2.6.27.42-0.1.1
  • kernel-default-man >= 2.6.27.23-0.1.1
  • kernel-kdump >= 2.6.27.23-0.1.1
  • kernel-pae >= 2.6.27.23-0.1.1
  • kernel-pae-base >= 2.6.27.23-0.1.1
  • kernel-ppc64 >= 2.6.27.23-0.1.1
  • kernel-ppc64-base >= 2.6.27.23-0.1.1
  • kernel-source >= 2.6.27.42-0.1.1
  • kernel-syms >= 2.6.27.42-0.1.1
  • kernel-vmi >= 2.6.27.23-0.1.1
  • kernel-vmi-base >= 2.6.27.23-0.1.1
  • kernel-xen >= 2.6.27.42-0.1.1
  • kernel-xen-base >= 2.6.27.42-0.1.1
  • oracleasm-kmp-default >= 2.0.5_2.6.27.54_0.2-7.9.1
Patchnames:
slessp0-kernel
openSUSE 11.1
  • kernel-debug-debuginfo >= 2.6.27.42-0.1.1
  • kernel-debug-debugsource >= 2.6.27.42-0.1.1
  • kernel-default-debuginfo >= 2.6.27.42-0.1.1
  • kernel-default-debugsource >= 2.6.27.42-0.1.1
  • kernel-kdump-debuginfo >= 2.6.27.42-0.1.1
  • kernel-kdump-debugsource >= 2.6.27.42-0.1.1
  • kernel-pae-debuginfo >= 2.6.27.42-0.1.1
  • kernel-pae-debugsource >= 2.6.27.42-0.1.1
  • kernel-ppc64-debuginfo >= 2.6.27.42-0.1.1
  • kernel-ppc64-debugsource >= 2.6.27.42-0.1.1
  • kernel-ps3-debuginfo >= 2.6.27.42-0.1.1
  • kernel-ps3-debugsource >= 2.6.27.42-0.1.1
  • kernel-source-debuginfo >= 2.6.27.42-0.1.1
  • kernel-trace-debuginfo >= 2.6.27.42-0.1.1
  • kernel-trace-debugsource >= 2.6.27.42-0.1.1
  • kernel-vanilla-debuginfo >= 2.6.27.42-0.1.1
  • kernel-vanilla-debugsource >= 2.6.27.42-0.1.1
  • kernel-xen-debuginfo >= 2.6.27.42-0.1.1
  • kernel-xen-debugsource >= 2.6.27.42-0.1.1
openSUSE 11.1
  • kernel-debug >= 2.6.27.42-0.1.1
  • kernel-debug-base >= 2.6.27.42-0.1.1
  • kernel-debug-extra >= 2.6.27.42-0.1.1
  • kernel-default >= 2.6.27.42-0.1.1
  • kernel-default-base >= 2.6.27.42-0.1.1
  • kernel-default-extra >= 2.6.27.42-0.1.1
  • kernel-docs >= 2.6.3-3.13.76
  • kernel-kdump >= 2.6.27.42-0.1.1
  • kernel-pae >= 2.6.27.42-0.1.1
  • kernel-pae-base >= 2.6.27.42-0.1.1
  • kernel-pae-extra >= 2.6.27.42-0.1.1
  • kernel-ppc64 >= 2.6.27.42-0.1.1
  • kernel-ppc64-base >= 2.6.27.42-0.1.1
  • kernel-ppc64-extra >= 2.6.27.42-0.1.1
  • kernel-ps3 >= 2.6.27.42-0.1.1
  • kernel-source >= 2.6.27.42-0.1.1
  • kernel-syms >= 2.6.27.42-0.1.1
  • kernel-trace >= 2.6.27.42-0.1.1
  • kernel-trace-base >= 2.6.27.42-0.1.1
  • kernel-trace-extra >= 2.6.27.42-0.1.1
  • kernel-vanilla >= 2.6.27.42-0.1.1
  • kernel-xen >= 2.6.27.42-0.1.1
  • kernel-xen-base >= 2.6.27.42-0.1.1
  • kernel-xen-extra >= 2.6.27.42-0.1.1
SLE 11 SERVER Unsupported Extras
  • kernel-default-extra >= 2.6.27.39-0.3.2
Builds
SAT Patch Nr: 1758
SLE 11 SERVER Unsupported Extras
  • kernel-default-extra >= 2.6.27.39-0.3.2
  • kernel-ppc64-extra >= 2.6.27.39-0.3.2
Builds
SAT Patch Nr: 1757
SUSE Linux Enterprise High Availability Extension 11
  • cluster-network-kmp-default >= 1.4_2.6.27.39_0.3-2.1.23
sles11.ppc
sle11-hae.ppc
sle11-debuginfo.ppc
SAT Patch Nr: 1752
SUSE Linux Enterprise Server 11 GA
  • ext4dev-kmp-default >= 0_2.6.27.39_0.3-7.1.23
  • ext4dev-kmp-ppc64 >= 0_2.6.27.39_0.3-7.1.23
  • kernel-default >= 2.6.27.39-0.3.2
  • kernel-default-base >= 2.6.27.39-0.3.2
  • kernel-kdump >= 2.6.27.39-0.3.2
  • kernel-ppc64 >= 2.6.27.39-0.3.2
  • kernel-ppc64-base >= 2.6.27.39-0.3.2
  • kernel-source >= 2.6.27.39-0.3.2
  • kernel-syms >= 2.6.27.39-0.3.2
sles11.ppc
sle11-hae.ppc
sle11-debuginfo.ppc
SAT Patch Nr: 1752
SLE 11 SERVER Unsupported Extras
  • kernel-default-extra >= 2.6.27.42-0.1.1
  • kernel-xen-extra >= 2.6.27.42-0.1.1
Builds
SAT Patch Nr: 1759
openSUSE 11.2
  • kernel-debug-debuginfo >= 2.6.31.8-0.1.1
  • kernel-debug-debugsource >= 2.6.31.8-0.1.1
  • kernel-debug-devel-debuginfo >= 2.6.31.8-0.1.1
  • kernel-default-debuginfo >= 2.6.31.8-0.1.1
  • kernel-default-debugsource >= 2.6.31.8-0.1.1
  • kernel-default-devel-debuginfo >= 2.6.31.8-0.1.1
  • kernel-desktop-base-debuginfo >= 2.6.31.8-0.1.1
  • kernel-desktop-debuginfo >= 2.6.31.8-0.1.1
  • kernel-desktop-debugsource >= 2.6.31.8-0.1.1
  • kernel-pae-debuginfo >= 2.6.31.8-0.1.1
  • kernel-pae-debugsource >= 2.6.31.8-0.1.1
  • kernel-pae-devel-debuginfo >= 2.6.31.8-0.1.1
  • kernel-trace-base-debuginfo >= 2.6.31.8-0.1.1
  • kernel-trace-debuginfo >= 2.6.31.8-0.1.1
  • kernel-trace-debugsource >= 2.6.31.8-0.1.1
  • kernel-vanilla-base-debuginfo >= 2.6.31.8-0.1.1
  • kernel-vanilla-debuginfo >= 2.6.31.8-0.1.1
  • kernel-vanilla-debugsource >= 2.6.31.8-0.1.1
  • kernel-xen-debuginfo >= 2.6.31.8-0.1.1
  • kernel-xen-debugsource >= 2.6.31.8-0.1.1
  • kernel-xen-devel-debuginfo >= 2.6.31.8-0.1.1
openSUSE 11.2
  • kernel-debug >= 2.6.31.8-0.1.1
  • kernel-debug-base >= 2.6.31.8-0.1.1
  • kernel-debug-devel >= 2.6.31.8-0.1.1
  • kernel-default >= 2.6.31.8-0.1.1
  • kernel-default-base >= 2.6.31.8-0.1.1
  • kernel-default-devel >= 2.6.31.8-0.1.1
  • kernel-desktop >= 2.6.31.8-0.1.1
  • kernel-desktop-base >= 2.6.31.8-0.1.1
  • kernel-desktop-devel >= 2.6.31.8-0.1.1
  • kernel-pae >= 2.6.31.8-0.1.1
  • kernel-pae-base >= 2.6.31.8-0.1.1
  • kernel-pae-devel >= 2.6.31.8-0.1.1
  • kernel-source >= 2.6.31.8-0.1.1
  • kernel-source-vanilla >= 2.6.31.8-0.1.1
  • kernel-syms >= 2.6.31.8-0.1.1
  • kernel-trace >= 2.6.31.8-0.1.1
  • kernel-trace-base >= 2.6.31.8-0.1.1
  • kernel-trace-devel >= 2.6.31.8-0.1.1
  • kernel-vanilla >= 2.6.31.8-0.1.1
  • kernel-vanilla-base >= 2.6.31.8-0.1.1
  • kernel-vanilla-devel >= 2.6.31.8-0.1.1
  • kernel-xen >= 2.6.31.8-0.1.1
  • kernel-xen-base >= 2.6.31.8-0.1.1
  • kernel-xen-devel >= 2.6.31.8-0.1.1
  • preload-kmp-default >= 1.1_2.6.31.8_0.1-6.9.3
  • preload-kmp-desktop >= 1.1_2.6.31.8_0.1-6.9.3
SLE 11 SERVER Unsupported Extras
  • kernel-default-extra >= 2.6.27.42-0.1.1
Builds
SAT Patch Nr: 1756
SLE 11 SERVER Unsupported Extras
  • kernel-default-extra >= 2.6.27.42-0.1.1
  • kernel-pae-extra >= 2.6.27.42-0.1.1
  • kernel-xen-extra >= 2.6.27.42-0.1.1
Builds
SAT Patch Nr: 1755
SUSE Linux Enterprise High Availability Extension 11
  • cluster-network-kmp-default >= 1.4_2.6.27.42_0.1-2.1.24
  • cluster-network-kmp-pae >= 1.4_2.6.27.42_0.1-2.1.24
  • cluster-network-kmp-xen >= 1.4_2.6.27.42_0.1-2.1.24
sles11.x86
sle11-hae.x86
sled11.x86
sle11-debuginfo.x86
SAT Patch Nr: 1760
SUSE Linux Enterprise Desktop 11 GA
  • kernel-default >= 2.6.27.42-0.1.1
  • kernel-default-base >= 2.6.27.42-0.1.1
  • kernel-default-extra >= 2.6.27.42-0.1.1
  • kernel-pae >= 2.6.27.42-0.1.1
  • kernel-pae-base >= 2.6.27.42-0.1.1
  • kernel-pae-extra >= 2.6.27.42-0.1.1
  • kernel-source >= 2.6.27.42-0.1.1
  • kernel-syms >= 2.6.27.42-0.1.1
  • kernel-xen >= 2.6.27.42-0.1.1
  • kernel-xen-base >= 2.6.27.42-0.1.1
  • kernel-xen-extra >= 2.6.27.42-0.1.1
sles11.x86
sle11-hae.x86
sled11.x86
sle11-debuginfo.x86
SAT Patch Nr: 1760
SUSE Linux Enterprise Server 11 GA
  • ext4dev-kmp-default >= 0_2.6.27.42_0.1-7.1.24
  • ext4dev-kmp-pae >= 0_2.6.27.42_0.1-7.1.24
  • ext4dev-kmp-vmi >= 0_2.6.27.42_0.1-7.1.24
  • ext4dev-kmp-xen >= 0_2.6.27.42_0.1-7.1.24
  • kernel-default >= 2.6.27.42-0.1.1
  • kernel-default-base >= 2.6.27.42-0.1.1
  • kernel-pae >= 2.6.27.42-0.1.1
  • kernel-pae-base >= 2.6.27.42-0.1.1
  • kernel-source >= 2.6.27.42-0.1.1
  • kernel-syms >= 2.6.27.42-0.1.1
  • kernel-vmi >= 2.6.27.42-0.1.1
  • kernel-vmi-base >= 2.6.27.42-0.1.1
  • kernel-xen >= 2.6.27.42-0.1.1
  • kernel-xen-base >= 2.6.27.42-0.1.1
sles11.x86
sle11-hae.x86
sled11.x86
sle11-debuginfo.x86
SAT Patch Nr: 1760
SUSE Linux Enterprise High Availability Extension 11
  • cluster-network-kmp-default >= 1.4_2.6.27.42_0.1-2.1.24
  • cluster-network-kmp-xen >= 1.4_2.6.27.42_0.1-2.1.24
sles11.x86-64
sle11-hae.x86-64
sled11.x86-64
sle11-debuginfo.x86-64
SAT Patch Nr: 1754
SUSE Linux Enterprise Desktop 11 GA
  • kernel-default >= 2.6.27.42-0.1.1
  • kernel-default-base >= 2.6.27.42-0.1.1
  • kernel-default-extra >= 2.6.27.42-0.1.1
  • kernel-source >= 2.6.27.42-0.1.1
  • kernel-syms >= 2.6.27.42-0.1.1
  • kernel-xen >= 2.6.27.42-0.1.1
  • kernel-xen-base >= 2.6.27.42-0.1.1
  • kernel-xen-extra >= 2.6.27.42-0.1.1
sles11.x86-64
sle11-hae.x86-64
sled11.x86-64
sle11-debuginfo.x86-64
SAT Patch Nr: 1754
SUSE Linux Enterprise Server 11 GA
  • ext4dev-kmp-default >= 0_2.6.27.42_0.1-7.1.24
  • ext4dev-kmp-xen >= 0_2.6.27.42_0.1-7.1.24
  • kernel-default >= 2.6.27.42-0.1.1
  • kernel-default-base >= 2.6.27.42-0.1.1
  • kernel-source >= 2.6.27.42-0.1.1
  • kernel-syms >= 2.6.27.42-0.1.1
  • kernel-xen >= 2.6.27.42-0.1.1
  • kernel-xen-base >= 2.6.27.42-0.1.1
sles11.x86-64
sle11-hae.x86-64
sled11.x86-64
sle11-debuginfo.x86-64
SAT Patch Nr: 1754
SUSE Linux Enterprise High Availability Extension 11
  • cluster-network-kmp-default >= 1.4_2.6.27.39_0.3-2.1.23
sles11.ia64
sle11-debuginfo.ia64
sle11-hae.ia64
SAT Patch Nr: 1750
SUSE Linux Enterprise Server 11 GA
  • ext4dev-kmp-default >= 0_2.6.27.39_0.3-7.1.23
  • kernel-default >= 2.6.27.39-0.3.2
  • kernel-default-base >= 2.6.27.39-0.3.2
  • kernel-source >= 2.6.27.39-0.3.2
  • kernel-syms >= 2.6.27.39-0.3.2
sles11.ia64
sle11-debuginfo.ia64
sle11-hae.ia64
SAT Patch Nr: 1750
SUSE Linux Enterprise High Availability Extension 11
  • cluster-network-kmp-default >= 1.4_2.6.27.42_0.1-2.1.24
sle11-hae.s390x
sle11-debuginfo.s390x
sles11.s390x
SAT Patch Nr: 1753
SUSE Linux Enterprise Server 11 GA
  • ext4dev-kmp-default >= 0_2.6.27.42_0.1-7.1.24
  • kernel-default >= 2.6.27.42-0.1.1
  • kernel-default-base >= 2.6.27.42-0.1.1
  • kernel-default-man >= 2.6.27.42-0.1.1
  • kernel-source >= 2.6.27.42-0.1.1
  • kernel-syms >= 2.6.27.42-0.1.1
sle11-hae.s390x
sle11-debuginfo.s390x
sles11.s390x
SAT Patch Nr: 1753


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 11 SP1 kernel-source Released
SUSE Linux Enterprise Server 11 SP1 kernel-source Released
SUSE Linux Enterprise Server 11 SP1 LTSS kernel-source Released
SUSE Linux Enterprise Server for SAP AIO 11 SP1 kernel-source Released