#VU13023 Use-after-free error in Linux kernel
Vulnerability identifier: #VU13023
Vulnerability risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-416
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The weakness exists in the do_get_mempolicy function in mm/mempolicy.c due to use-after-free error. A local attacker can use specially crafted system calls, trigger memory corruption and cause the service to crash.
Mitigation
Update to version 4.12.9.
Vulnerable software versions
Linux kernel: 4.12 - 4.12.8, 4.11 - 4.11.11, 4.10 - 4.10.17
External links
http://github.com/torvalds/linux/commit/73223e4e2e3867ebf033a5a8eb2e5df0158ccc99
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
