#VU80795 Out-of-bounds read in Linux kernel
Vulnerability identifier: #VU80795
Vulnerability risk: Low
CVSSv3.1: 4 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-125
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows an attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the read_descriptors() function in drivers/usb/core/sysfs.c. An attacker with physical access to the system can attach a malicious USB device, trigger an out-of-bounds read error and crash the kernel.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Linux kernel: All versions
External links
http://syzkaller.appspot.com/bug?extid=18996170f8096c6174d0
http://lore.kernel.org/all/000000000000c0ffe505fe86c9ca@google.com/T/
http://lore.kernel.org/all/000000000000e56434059580f86e@google.com/T/
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
