Security restrictions bypass in Linux kernel - CVE-2008-3528

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU92852

Security restrictions bypass in Linux kernel - CVE-2008-3528

Published: September 27, 2008 / Updated: February 13, 2023


Vulnerability identifier: #VU92852
CSH Severity: Low
CVSS v4: 4.8 [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]
CVE-ID: CVE-2008-3528
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

Linux kernel
Ubuntu
linux-image-2.6.27-7-virtual (Ubuntu package)
linux-image-2.6.27-7-generic (Ubuntu package)
linux-image-2.6.27-7-server (Ubuntu package)

How to mitigate CVE-2008-3528

Install update from vendor's repository.

linux-image-2.6.27-7-virtual (Ubuntu package) - update to 2.6.27-7.16
linux-image-2.6.27-7-generic (Ubuntu package) - update to 2.6.27-7.16
linux-image-2.6.27-7-server (Ubuntu package) - update to 2.6.27-7.16

External References

Related Security Bulletins