SmoothWall Project Security Advisory SWP-2004:002
Summary: Updates for SmoothWall Express to correct local
vulnerabilities in Linux kernel.
Importance: Severe
Issue: Possible local vulnerabilities
CVE Names: CAN-2004-0077
Released: 2004-02-27
SW-specific: no
Affected Products:
SmoothWall Express 2.0 (fixes1)
The products shown must be updated to the fix level as shown
above before applying any updates mentioned in this advisory.
Description
Critical security vulnerabilities have been found in the Linux
kernel in the following areas:
- Locally exploitable vulnerabilities in memory management code
(mremap system calls)
These vulnerabilities can result in privilege escalation or
unwanted availability of sensitive information.
Corrective Actions
You should download and install the required update for your
product(s). The updates can be downloaded from the web links below,
along with installation instructions and any further caveats or
updates.
SmoothWall Express 2.0 fixes 2
– http://smoothwall.org/p/2.0-fixes2.html
Further Information
CVE Candidate CAN-2004-0077
– http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0077
Linux kernel do_mremap VMA limit local privilege escalation
– http://www.isec.pl/vulnerabilities/isec-0014-mremap-unmap.txt
Linux Kernel 2.4.25 Changelog
– http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.25