Red Hat Enterprise MRG 2 update for kernel-rt
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2019-14816 CVE-2019-17666 |
| CWE-ID | CWE-122 CWE-119 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
kernel-rt (Red Hat package) Operating systems & Components / Operating system package or component MRG Realtime Server applications / Application servers |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Heap-based buffer overflow
EUVDB-ID: #VU21444
Risk: Low
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-14816
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the mwifiex_set_wmm_params() function in the Marvell Wi-Fi chip driver in Linux kernel. A local user can run a specially crafted application to trigger a heap-based buffer overflow and execute arbitrary code on the system with elevated privileges.
Mitigation
Install updates from vendor's website.
kernel-rt (Red Hat package): 3.10.0-229.rt56.144.el6rt - 3.10.0-693.64.1.rt56.662.el6rt
MRG Realtime: 2
CPE2.3- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-693.64.1.rt56.662.el6rt:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-693.50.3.rt56.644.el6rt:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-693.47.2.rt56.641.el6rt:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:a:red_hat:mrg_realtime:2:*:*:*:*:*:*:
http://access.redhat.com/errata/RHSA-2020:1353
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.
2) Buffer overflow
EUVDB-ID: #VU22595
Risk: Medium
CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-17666
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the P2P (Wifi-Direct) functionality in rtl_p2p_noa_ie() function in drivers/net/wireless/realtek/rtlwifi/ps.c in Linux kernel when processing Notice and Absence frames. A remote attacker can send specially crafted data via the wireless network, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
kernel-rt (Red Hat package): 3.10.0-229.rt56.144.el6rt - 3.10.0-693.64.1.rt56.662.el6rt
MRG Realtime: 2
CPE2.3- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-693.64.1.rt56.662.el6rt:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-693.50.3.rt56.644.el6rt:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-693.47.2.rt56.641.el6rt:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:a:red_hat:mrg_realtime:2:*:*:*:*:*:*:
http://access.redhat.com/errata/RHSA-2020:1353
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
