CVE-2020-0466: Use After Free
A flaw was found in the Linux kernel. A logic error in eventpoll.c can cause a use-after-free, leading to a local escalation of privilege with no additional execution privileges. User interaction is not needed for exploitation. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.
Other sources
Google Android could allow a local attacker to gain elevated privileges on the system, caused by a logic error in doepollctl and eploopcheckproc of eventpoll.c. By executing a specially-crafted program, an attacker could exploit this vulnerability to escalate privileges.
— IBM
In doepollctl and eploopcheckproc of eventpoll.c, there is a possible use after free due to a logic error. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a9ed4a6560b8562b7e2e2bed9527e88001f7b682 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=52c479697c9b73f628140dcdfcd39ea302d05482
— Red Hat
In doepollctl and eploopcheckproc of eventpoll.c, there is a possible use after free due to a logic error. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-147802478References: Upstream kernel
Affected Software
Remediation
Information
Patch Available
Event History
Parent advisories
This vulnerability appears in the following advisories.
Frequently Asked Questions
What is the severity of CVE-2020-0466?
CVE-2020-0466 is rated as a high-severity vulnerability due to its potential for local privilege escalation.
How do I fix CVE-2020-0466?
To remediate CVE-2020-0466, update to the latest kernel versions specified in the vendor advisories.
Who is affected by CVE-2020-0466?
CVE-2020-0466 primarily affects users running specific versions of the Linux kernel on Red Hat and Debian systems.
What type of vulnerability is CVE-2020-0466?
CVE-2020-0466 is a use-after-free vulnerability found in the Linux kernel's eventpoll component.
Is user interaction required to exploit CVE-2020-0466?
No, CVE-2020-0466 can be exploited without any user interaction.