#VU90142 Use-after-free in Linux kernel
Vulnerability identifier: #VU90142
Vulnerability risk: Low
CVSSv3.1: 7.7 [AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/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 vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the fl_walk() function in net/sched/cls_flower.c. A local user can escalate privileges on the system.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel:
External links
http://git.kernel.org/stable/c/694b0cee7f8546b69a80996a29cb3cf4149c0453
http://git.kernel.org/stable/c/d0d520c19e7ea19ed38dc5797b12397b6ccf9f88
http://git.kernel.org/stable/c/dab4677bdbffa5c8270e79e34e51c89efa0728a0
http://git.kernel.org/stable/c/d5ef190693a7d76c5c192d108e8dec48307b46ee
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.
