Linux Kernel error-reporting denial of service
| kernel-errorreporting-dos (45720) |  Medium Risk |
Description:
Linux Kernel is vulnerable to a denial of service, caused by an unlimited number of printk console messages reporting corruption within the error-reporting function in the fs/ext2/dir.c, fs/ext3/dir.c, and fs/ext4/dir.c files. By mounting a filesystem containing corrupted data structures, a local attacker could exploit this vulnerability to cause the system to hang resulting in a denial of service.
*CVSS:
| Base Score: | 2.1 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 1.6 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Refer to The Linux Kernel Archives Web site for patch, upgrade or suggested workaround information. See References.
References:
- LKML.ORG Mailing List, Sat, 13 Sep 2008 11:32:50 -0400: [PATCH 3/4] ext2: Avoid printk floods in the face of directory corruption.
- LKML.ORG Mailing List, Sat, 13 Sep 2008 11:32:51 -0400: [PATCH 4/4] ext3: Avoid printk floods in the face of directory corruption.
- LKML.ORG Mailing List, Thu, 18 Sep 2008 08:57:19 +0800: Re: [PATCH 4/4] ext3: Avoid printk floods in the face of directory corruption.
- oss-security Mailing List, Thu, 18 Sep 2008 13:41:01 +0800 : CVE-2008-3528 Linux kernel ext[234] directory corruption DoS .
- Red Hat Bugzilla Bug 459577: CVE-2008-3528 Linux kernel ext[234] directory corruption denial of service.
- The Linux Kernel Archives Web site: The Linux Kernel Archives.
- ASA-2008-482: kernel security and bug fix update (RHSA-2008-0972)
- CVE-2008-3528: The error-reporting functionality in (1) fs/ext2/dir.c, (2) fs/ext3/dir.c, and possibly (3) fs/ext4/dir.c in the Linux kernel 2.6.26.5 does not limit the number of printk console messages that report directory corruption, which allows physically proximate attackers to cause a denial of service (temporary system hang) by mounting a filesystem that has corrupted dir->i_size and dir->i_blocks values and performing (a) read or (b) write operations. NOTE: there are limited scenarios in which this crosses privilege boundaries.
- DSA-1681: linux-2.6.24 -- denial of service/privilege escalation
- DSA-1687: linux-2.6 -- denial of service/privilege escalation
- MDVSA-2008:224: kernel
- MDVSA-2008:224-1: kernel
- RHSA-2008-0972: Important: kernel security and bug fix update
- RHSA-2009-0009: Important: kernel security and bug fix update
- RHSA-2009-0326: Important: kernel security and bug fix update
- SA32509: Ubuntu update for kernel
- SUSE-SA:2008:051: Linux kernel security update
- SUSE-SA:2008:052: Linux kernel security update
- SUSE-SA:2008:053: Linux kernel security update
- SUSE-SA:2008:056: Linux kernel security problems
- SUSE-SA:2008:057: Linux kernel security problems
- SUSE-SR:2008:025: SUSE Security Summary Report
- USN-662-1: Linux kernel vulnerabilities
- VUPEN/ADV-2009-3316: VMware Products Multiple Code Execution and Security Bypass Issues
Platforms Affected:
- Canonical Ubuntu 8.10
- Debian Debian Linux 4.0
- Linux Kernel 2.6.26.5
- Mandriva Linux 2009.0 X86_64
- Mandriva Linux 2009.0
- Novell Linux Desktop 9
- Novell Linux POS 9
- Novell OpenSUSE 10.3
- Novell OpenSUSE 11.0
- Novell SLE SDK 10 SP2
- Novell SLE SDK 10 SP1
- Novell SUSE Linux Enterprise 10 SP1 DEBUGINFO
- Novell SUSE Linux Enterprise 10 SP2 DEBUGINFO
- Novell SUSE Linux Enterprise Desktop 10 SP2
- Novell SUSE Linux Enterprise Desktop 10 SP1
- Novell SUSE Linux Enterprise Server 10 SP2
- Novell SUSE Linux Enterprise Server 10 SP1
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5.3.z EUS
- RedHat Enterprise Linux Long Life 5.3
- RedHat MRG v1 for Red Hat Enterprise Linux 5
- SuSE Linux Enterprise Server 9
- SuSE SuSE SLES 9
Reported:
Sep 18, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.