Detections
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Fedora 10 : udev-127-5.fc10 (2009-3711)
high Nessus Plugin ID 36703
Synopsis
The remote Fedora host is missing a security update.Description
udev provides a user-space API and implements a dynamic device directory, providing only the devices present on the system. udev replaces devfs in order to provide greater hot plug functionality.Netlink is a datagram oriented service, used to transfer information between kernel modules and user-space processes. It was discovered that udev did not properly check the origin of Netlink messages. A local attacker could use this flaw to gain root privileges via a crafted Netlink message sent to udev, causing it to create a world- writable block device file for an existing system block device (for example, the root file system). (CVE-2009-1185) An integer overflow flaw, potentially leading to heap-based buffer overflow was found in one of the utilities providing functionality of the udev device information interface. An attacker could use this flaw to cause a denial of service, or possibly, to execute arbitrary code by providing a specially crafted arguments as input to this utility.
(CVE-2009-1186) Thanks to Sebastian Krahmer of the SUSE Security Team for responsibly reporting this flaw. Users of udev are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, the udevd daemon will be restarted automatically.
Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected udev package.See Also
https://bugzilla.redhat.com/show_bug.cgi?id=495051
Plugin Details
Severity: High
ID: 36703
File Name: fedora_2009-3711.nasl
Version: 1.24
Type: local
Agent: unix
Family: Fedora Local Security Checks
Published: 4/23/2009
Updated: 1/11/2021
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 10.0
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: cpe:/o:fedoraproject:fedora:10, p-cpe:/a:fedoraproject:fedora:udev
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/16/2009
Exploitable With
CANVAS (CANVAS)
Core Impact
Metasploit (Linux udev Netlink Local Privilege Escalation)
Reference Information
CVE: CVE-2009-1185, CVE-2009-1186