Vulnerability Details CVE-2021-4158
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.2%
CVSS Severity
CVSS v3 Score 6.0
References
- https://access.redhat.com/security/cve/CVE-2021-4158
- https://bugzilla.redhat.com/show_bug.cgi?id=2035002
- https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e
- https://gitlab.com/qemu-project/qemu/-/issues/770
- https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html
- https://access.redhat.com/security/cve/CVE-2021-4158
- https://bugzilla.redhat.com/show_bug.cgi?id=2035002
- https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e
- https://gitlab.com/qemu-project/qemu/-/issues/770
- https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html
Products affected by CVE-2021-4158
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cpe:2.3:a:qemu:qemu:07-20-2020
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cpe:2.3:a:qemu:qemu:6.0.0
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cpe:2.3:a:qemu:qemu:6.1.0
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cpe:2.3:a:qemu:qemu:6.1.50
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cpe:2.3:a:qemu:qemu:6.2.0
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cpe:2.3:a:qemu:qemu:6.2.0-7
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cpe:2.3:o:redhat:enterprise_linux:9.0