CVE-2020-15706 vulnerability in Red Hat and Other Products
Published on July 29, 2020
GRUB2 contains a race condition leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing.
Vulnerability Analysis
CVE-2020-15706 is exploitable with local system access, and requires user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Race Condition Vulnerability?
The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CVE-2020-15706 has been classified to as a Race Condition vulnerability or weakness.
Products Associated with CVE-2020-15706
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Affected Versions
grub2 in Ubuntu:- Version 20.04 LTS and below 2.04-1ubuntu26.1 is affected.
- Version 18.04 LTS and below 2.02-2ubuntu8.16 is affected.
- Version 16.04 LTS and below 2.02~beta2-36ubuntu3.26 is affected.
- Version 14.04 ESM and below 2.02~beta2-9ubuntu1.20 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.