CVE-2013-6378: Medium severity Linux Linux kernel vulnerability
Last updated 24 July 2024
Other sources
Linux kernel built with the Marvell 8xxx Libertas WLAN driver support (CONFIGLIBERTAS) is vulnerable to an invalid pointer dereference flaw. It could occur while writing to a file under debugfs.
A privileged user could use this flaw to crash the system resulting in DoS.
Upstream fix: ------------- -> https://git.kernel.org/linus/a497e47d4aec37aaf8f13509f3ef3d1f6a717d88
Reference: ---------- -> http://seclists.org/oss-sec/2013/q4/330
— Red Hat
The lbsdebugfswrite function in drivers/net/wireless/libertas/debugfs.c in the Linux kernel through 3.12.1 allows local users to cause a denial of service (OOPS) by leveraging root privileges for a zero-length write operation.
— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1 - Upgrade
Upgrade
Linux kernel (drivers/net/wireless/libertas)to a version that resolves this vulnerability.Fixed in through 3.12.1Patch https://git.kernel.org/linus/a497e47d4aec37aaf8f13509f3ef3d1f6a717d88 - Compensating control
Avoid using debugfs paths related to the libertas driver (drivers/net/wireless/libertas/debugfs.c / lbs_debugfs_write) to prevent local privileged zero-length writes that trigger the DoS/OOPS until the upstream fix is applied.
Event History
Frequently Asked Questions
What is the severity of CVE-2013-6378?
CVE-2013-6378 has a severity rating that indicates it could allow a privileged user to crash the system, leading to denial-of-service (DoS).
How do I fix CVE-2013-6378?
To fix CVE-2013-6378, update the Linux kernel to a version later than 3.12.1 that includes the patch for this vulnerability.
What types of systems are affected by CVE-2013-6378?
CVE-2013-6378 affects Linux kernels built with the Marvell 8xxx Libertas WLAN driver support, specifically versions from before 3.12.1.
Can CVE-2013-6378 be exploited remotely?
CVE-2013-6378 requires local access; it cannot be exploited remotely by an unprivileged user.
What is an invalid pointer dereference in the context of CVE-2013-6378?
An invalid pointer dereference in CVE-2013-6378 refers to the kernel's failure to properly handle a pointer, which can cause a crash when writing to a file in debugfs.