Security restrictions bypass in Linux kernel

1) Security restrictions bypass

EUVDB-ID: #VU92852

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2008-3528

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to perform service disruption.

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.

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://lkml.org/lkml/2008/9/17/371
https://bugzilla.redhat.com/show_bug.cgi?id=459577
https://lkml.org/lkml/2008/9/13/99
https://www.openwall.com/lists/oss-security/2008/09/18/2
https://lkml.org/lkml/2008/9/13/98
https://lists.opensuse.org/opensuse-security-announce/2008-10/msg00010.html
https://www.ubuntu.com/usn/usn-662-1
https://secunia.com/advisories/32509
https://www.mandriva.com/security/advisories?name=MDVSA-2008:224
https://wiki.rpath.com/wiki/Advisories:rPSA-2008-0316
https://secunia.com/advisories/32709
https://secunia.com/advisories/32759
https://rhn.redhat.com/errata/RHSA-2008-0972.html
https://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html
https://secunia.com/advisories/32799
https://lists.opensuse.org/opensuse-security-announce/2008-12/msg00001.html
https://wiki.rpath.com/Advisories:rPSA-2008-0316
https://secunia.com/advisories/33180
https://www.debian.org/security/2008/dsa-1687
https://secunia.com/advisories/32998
https://www.debian.org/security/2008/dsa-1681
https://lists.opensuse.org/opensuse-security-announce/2008-12/msg00000.html
https://www.redhat.com/support/errata/RHSA-2009-0009.html
https://secunia.com/advisories/33586
https://www.redhat.com/support/errata/RHSA-2009-0326.html
https://secunia.com/advisories/33758
https://www.vmware.com/security/advisories/VMSA-2009-0016.html
https://secunia.com/advisories/37471
https://www.vupen.com/english/advisories/2009/3316
https://secunia.com/advisories/32356
https://lists.opensuse.org/opensuse-security-announce/2008-10/msg00007.html
https://lists.opensuse.org/opensuse-security-announce/2008-10/msg00008.html
https://secunia.com/advisories/32370
https://exchange.xforce.ibmcloud.com/vulnerabilities/45720
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8642
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10852
https://www.securityfocus.com/archive/1/507985/100/0/threaded
https://www.securityfocus.com/archive/1/498285/100/0/threaded

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.