Vulnerabilites related to redhat - enterprise_linux_advanced_virtualization_eus
cve-2021-3748
Vulnerability from cvelistv5
Published
2022-03-23 19:46
Modified
2024-08-03 17:09
Severity ?
Summary
A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process.
Impacted products
Vendor Product Version
n/a QEMU (virtio-net) Version: Affects qemu v0.10.0 and above, Fixed In – v6.2.0-rc0 and above.
Show details on NVD website


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cve-2021-3930
Vulnerability from cvelistv5
Published
2022-02-18 17:50
Modified
2024-08-03 17:09
Severity ?
Summary
An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.
Impacted products
Vendor Product Version
n/a QEMU Version: qemu-kvm 6.2.0-rc0
Show details on NVD website


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Vulnerability from fkie_nvd
Published
2022-03-23 20:15
Modified
2024-11-21 06:22
Summary
A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process.
References
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1998514Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://github.com/qemu/qemu/commit/bedd7e93d01961fcb16a97ae45d93acf357e11f6Patch, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2022/04/msg00002.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg00388.htmlMailing List, Patch, Third Party Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/202208-27Third Party Advisory
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20220425-0004/Third Party Advisory
secalert@redhat.comhttps://ubuntu.com/security/CVE-2021-3748Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1998514Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/qemu/qemu/commit/bedd7e93d01961fcb16a97ae45d93acf357e11f6Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/04/msg00002.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg00388.htmlMailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-27Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220425-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://ubuntu.com/security/CVE-2021-3748Patch, Third Party Advisory



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         value: "Se ha encontrado una vulnerabilidad de uso de memoria previamente liberada en el dispositivo virtio-net de QEMU. Podría ocurrir cuando la dirección del descriptor pertenece a la región de acceso no directo, debido a que num_buffers es establecido después de que el elemento virtqueue haya sido desmapeado. Un huésped malicioso podría usar este fallo para bloquear QEMU, resultando en una condición de denegación de servicio, o potencialmente ejecutar código en el host con los privilegios del proceso QEMU",
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}

Vulnerability from fkie_nvd
Published
2022-02-18 18:15
Modified
2024-11-21 06:22
Summary
An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.



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   id: "CVE-2021-3930",
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}