Package : linux-2.6 Vulnerability : several Problem-Type : local/remote Debian-specific: no CVE ID : CVE-2007-2172 CVE-2007-2875 CVE-2007-3105 CVE-2007-3843 CVE-2007-4308
Several local and remote vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or the execution of arbitrary code. The Common Vulnerabilities and Exposures project identifies the following problems:
Thomas Graf reported a typo in the IPV4 protocol handler that could be used by a local attacker to overrun an array via crafted packets, potentially resulting in a Denial of Service (system crash). The DECnet counterpart of this issue was already fixed in DSA-1356.
iDefense reported a potential integer underflow in the cpuset filesystem which may permit local attackers to gain access to sensitive kernel memory. This vulnerability is only exploitable if the cpuset filesystem is mounted.
The PaX Team discovered a potential buffer overflow in the random number generator which may permit local users to cause a denial of service or gain additional privileges. This issue is not believed to effect default Debian installations where only root has sufficient privileges to exploit it.
A coding error in the CIFS subsystem permits the use of unsigned messages even if the client has been configured the system to enforce signing by passing the sec=ntlmv2i mount option. This may allow remote attackers to spoof CIFS network traffic.
Alan Cox reported an issue in the aacraid driver that allows unprivileged local users to make ioctl calls which should be restricted to admin privileges.
These problems have been fixed in the stable distribution in version 2.6.18.dfsg.1-13etch2.
The following matrix lists additional packages that were rebuilt for compatibility with or to take advantage of this update:
We recommend that you upgrade your kernel package immediately and reboot the machine. If you have built a custom kernel from the kernel source package, you will need to rebuild to take advantage of these fixes.
Upgrade Instructions - --------------------
wget url will fetch the file for you dpkg -i file.deb will install the referenced file.
If you are using the apt-get package manager, use the line for sources.list as given below:
apt-get update will update the internal database apt-get upgrade will install corrected packages
You may use an automated update by adding the resources from the footer to the proper configuration.
Debian GNU/Linux 4.0 alias etch - --------------------------------