Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-25641 |
CWE-ID | CWE-835 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software |
Red Hat Enterprise Linux for IBM System z (Structure A) Operating systems & Components / Operating system Red Hat Enterprise Linux for Power 9 Operating systems & Components / Operating system Red Hat Enterprise Linux for ARM 64 Operating systems & Components / Operating system kernel-alt (Red Hat package) Operating systems & Components / Operating system package or component |
Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU48941
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2020-25641
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect implementation of biovecs in Linux kernel. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. A local user can issue requests to a block device and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux for IBM System z (Structure A): 7.0
Red Hat Enterprise Linux for Power 9: 7.0
Red Hat Enterprise Linux for ARM 64: 7.0
kernel-alt (Red Hat package): before 4.14.0-115.33.1.el7a
CPE2.3https://access.redhat.com/errata/RHSA-2020:5079
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.