Vulnerability CVE-2021-4158: Information
Description
A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
Severity: MEDIUM (6.0) Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
|---|---|---|---|---|---|---|
| qemu | sisyphus | 6.2.0-alt2 | 8.2.3-alt1 | ALT-PU-2022-1369-1 | 295900 | Fixed |
| qemu | sisyphus_e2k | 7.2.0-alt3.E2K.3 | 7.2.0-alt3.E2K.4 | ALT-PU-2024-1953-1 | - | Fixed |
| qemu | p10 | 6.1.1-alt1 | 8.2.2-alt0.p10.1 | ALT-PU-2022-1412-1 | 295902 | Fixed |
| qemu | p10_e2k | 7.2.0-alt3.E2K.0 | 7.2.0-alt3.E2K.3 | ALT-PU-2023-6766-1 | - | Fixed |
| qemu | c10f1 | 8.0.0-alt1.p10 | 8.2.2-alt0.p10.1 | ALT-PU-2023-1869-1 | 321192 | Fixed |
| qemu | p11 | 6.2.0-alt2 | 8.2.3-alt1 | ALT-PU-2022-1369-1 | 295900 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2035002 |
|
| https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e |
|
| https://access.redhat.com/security/cve/CVE-2021-4158 |
|
| https://gitlab.com/qemu-project/qemu/-/issues/770 |
|
| https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html |
|