#VU90952 Improper error handling in Linux kernel
Vulnerability identifier: #VU90952
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-388
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 error handling within the dwxgmac3_handle_dma_err(), dwxgmac3_safety_feat_config(), dwxgmac3_safety_feat_irq_status() and dwxgmac3_safety_feat_dump() functions in drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.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/e9837c83befb5b852fa76425dde98a87b737df00
http://git.kernel.org/stable/c/2fc45a4631ac7837a5c497cb4f7e2115d950fc37
http://git.kernel.org/stable/c/6609e98ed82966a1b3168c142aca30f8284a7b89
http://git.kernel.org/stable/c/e42ff0844fe418c7d03a14f9f90e1b91ba119591
http://git.kernel.org/stable/c/7e0ff50131e9d1aa507be8e670d38e9300a5f5bf
http://git.kernel.org/stable/c/3b48c9e258c8691c2f093ee07b1ea3764caaa1b2
http://git.kernel.org/stable/c/46eba193d04f8bd717e525eb4110f3c46c12aec3
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.
