PT-2021-8264 · Linux+1 · Linux Kernel+1
Dan Carpenter
·
Published
2021-04-13
·
Updated
2024-12-09
·
CVE-2021-47049
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a use-after-free vulnerability in the
vmbus open() function. The "open info" variable is added to the &vmbus connection.chn msg list, but the error handling frees "open info" without removing it from the list, resulting in a use-after-free condition. This can lead to a denial of service. The vulnerability is exploited by first removing the "open info" variable from the list and then freeing it.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel
Suse