Vulnerability identifier: #VU90734
Vulnerability risk: Low
CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-667
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 perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the lpfc_set_rrq_active() and lpfc_sli_post_recovery_event() functions in drivers/scsi/lpfc/lpfc_sli.c, within the lpfc_dev_loss_tmo_callbk() function in drivers/scsi/lpfc/lpfc_hbadisc.c, within the lpfc_els_retry_delay() function in drivers/scsi/lpfc/lpfc_els.c. A local user can perform a denial of service (DoS) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel:
External links
http://git.kernel.org/stable/c/6503c39398506cadda9f4c81695a9655ca5fb4fd
http://git.kernel.org/stable/c/e8bf2c05e8ad68e90f9d5889a9e4ef3f6fe00683
http://git.kernel.org/stable/c/ee833d7e62de2b84ed1332d501b67f12e7e5678f
http://git.kernel.org/stable/c/ded20192dff31c91cef2a04f7e20e60e9bb887d3
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.