Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-3347 |
CWE-ID | CWE-416 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
kpatch-patch-3_10_0-1160_6_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-1160_2_2 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-1160_2_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-1160_21_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-1160_15_2 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-1160_11_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-1160 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-1160_25_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-1160_24_1 (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Enterprise Linux for Power, little endian Operating systems & Components / Operating system Red Hat Enterprise Linux Server Operating systems & Components / Operating system |
Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU52035
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3347
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to elevate privileges on the system.
The vulnerability exists due to a use-after-free error when handling PI futexes. A local user can run a specially crafted program to trigger a use-after-free error and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
kpatch-patch-3_10_0-1160_6_1 (Red Hat package): 1-3.el7 - 1-5.el7
kpatch-patch-3_10_0-1160_2_2 (Red Hat package): 1-3.el7 - 1-5.el7
kpatch-patch-3_10_0-1160_2_1 (Red Hat package): 1-3.el7 - 1-5.el7
kpatch-patch-3_10_0-1160_21_1 (Red Hat package): 1-2.el7
kpatch-patch-3_10_0-1160_15_2 (Red Hat package): 1-2.el7 - 1-4.el7
kpatch-patch-3_10_0-1160_11_1 (Red Hat package): 1-2.el7 - 1-4.el7
kpatch-patch-3_10_0-1160 (Red Hat package): 1-3.el7 - 1-5.el7
Red Hat Enterprise Linux for Power, little endian: 7
Red Hat Enterprise Linux Server: 7
kpatch-patch-3_10_0-1160_25_1 (Red Hat package): before 1-1.el7
kpatch-patch-3_10_0-1160_24_1 (Red Hat package): before 1-1.el7
External linkshttp://access.redhat.com/errata/RHSA-2021:2285
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.