NULL pointer dereference in Linux kernel - CVE-2015-5257
Published: November 16, 2015 / Updated: June 1, 2024
Vulnerability identifier: #VU90694
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-5257
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the whiteheat_firmware_download() and whiteheat_firmware_attach() functions in drivers/usb/serial/whiteheat.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
Fedora
kernel
Fedora
kernel
How to mitigate CVE-2015-5257
Install update from vendor's website.
Linux kernel - update to 4.2.4
kernel - addressed in versions 4.1.10-100.fc21, 4.1.10-200.fc22, 4.2.2-300.fc23
kernel - addressed in versions 4.1.10-100.fc21, 4.1.10-200.fc22, 4.2.2-300.fc23
External References
- https://bugzilla.redhat.com/show_bug.cgi?id=1265607
- https://github.com/torvalds/linux/commit/cbb4be652d374f64661137756b8f357a1827d6a4
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cbb4be652d374f64661137756b8f357a1827d6a4
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.4
- http://www.openwall.com/lists/oss-security/2015/09/23/1
- http://www.securityfocus.com/bid/76834
- http://www.ubuntu.com/usn/USN-2794-1
- http://www.debian.org/security/2015/dsa-3372
- http://www.ubuntu.com/usn/USN-2799-1
- http://www.ubuntu.com/usn/USN-2792-1
- http://www.ubuntu.com/usn/USN-2795-1
- http://www.ubuntu.com/usn/USN-2798-1