vulnerability
Ubuntu: (CVE-2021-47049): linux-fips vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | Feb 28, 2024 | Jun 26, 2025 | Mar 27, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Feb 28, 2024
Added
Jun 26, 2025
Modified
Mar 27, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
Drivers: hv: vmbus: Use after free in __vmbus_open()
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. This will result in a use after free. First remove it from the
list, and then free it.
Solution
no-fix-ubuntu-package
References
- CVE-2021-47049
- https://attackerkb.com/topics/CVE-2021-47049
- CWE-416
- EUVD-EUVD-2021-33697
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-33697
- https://git.kernel.org/linus/3e9bf43f7f7a46f21ec071cb47be92d0874c48da
- https://git.kernel.org/stable/c/2728f289b3270b0e273292b46c534421a33bbfd5
- https://git.kernel.org/stable/c/3e9bf43f7f7a46f21ec071cb47be92d0874c48da
- https://git.kernel.org/stable/c/d5c7b42c9f56ca46b286daa537d181bd7f69214f
- https://git.kernel.org/stable/c/f37dd5d1b5d38a79a4f7b8dd7bbb705505f05560
- https://www.cve.org/CVERecord?id=CVE-2021-47049
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