Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-47136 |
CWE-ID | CWE-908 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
Linux kernel Operating systems & Components / Operating system |
Vendor | Linux Foundation |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU91680
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: CVE-2021-47136
CWE-ID:
CWE-908 - Use of Uninitialized Resource
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the tcf_classify_ingress() function in net/sched/cls_api.c, within the mlx5e_tc_update_skb() function in drivers/net/ethernet/mellanox/mlx5/core/en_tc.c, within the mlx5e_rep_tc_update_skb() function in drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c. A local user can perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsLinux kernel: All versions
External linkshttp://git.kernel.org/stable/c/ac493452e937b8939eaf2d24cac51a4804b6c20e
http://git.kernel.org/stable/c/86ab133b695ed7ba1f8786b12f4ca43137ad8c18
http://git.kernel.org/stable/c/9453d45ecb6c2199d72e73c993e9d98677a2801b
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.