SB2007121802 - Security restrictions bypass in Linux kernel
Published: December 18, 2007
Security Bulletin ID
SB2007121802
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2007-6434)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 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]
The vulnerability allows a local user to perform service disruption.
Linux kernel 2.6.23 allows local users to create low pages in virtual userspace memory and bypass mmap_min_addr protection via a crafted executable file that calls the do_brk function.
Remediation
Install update from vendor's website.