Summary
Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems.
Security Fix(es):
* QEMU: VNC: infinite loop in inflate_buffer() leads to denial of service (CVE-2023-3255)
* QEMU: improper IDE controller reset can lead to MBR overwrite (CVE-2023-5088)
* QEMU: VNC: NULL pointer dereference in qemu_clipboard_request() (CVE-2023-6683)
* QEMU: virtio-net: stack buffer overflow in virtio_net_flush_tx() (CVE-2023-6693)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Rocky Linux 8.10 Release Notes linked from the References section.
Fixed packages 18
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 8 | hivex | 0:1.3.18-23.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | libguestfs | 1:1.44.0-9.module+el8.10.0+1590+a67ab969.rocky |
| Rocky Linux · 8 | libguestfs-winsupport | 0:8.10-1.module+el8.10.0+1451+358d0d76 |
| Rocky Linux · 8 | libiscsi | 0:1.18.0-8.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | libnbd | 0:1.6.0-5.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | libtpms | 0:0.9.1-2.20211126git1ff6fe1f43.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | libvirt | 0:8.0.0-23.1.module+el8.10.0+1779+84732956 |
| Rocky Linux · 8 | libvirt-dbus | 0:1.3.0-2.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | libvirt-python | 0:8.0.0-2.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | nbdkit | 0:1.24.0-5.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | netcf | 0:0.2.8-12.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | perl-Sys-Virt | 0:8.0.0-1.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | qemu-kvm | 5:6.2.0-49.module+el8.10.0+1752+38c6b60a |
| Rocky Linux · 8 | seabios | 0:1.16.0-4.module+el8.9.0+1408+7b966129 |
| Rocky Linux · 8 | sgabios | 1:0.20170427git-3.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | supermin | 0:5.2.1-2.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | swtpm | 0:0.7.0-4.20211109gitb79fd91.module+el8.10.0+1590+a67ab969 |
| Rocky Linux · 8 | virt-v2v | 1:1.42.0-22.module+el8.10.0+1590+a67ab969 |
Vulnerabilities 4
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Medium 6.5
Qemu: vnc: infinite loop in inflate_buffer() leads to denial of service
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authent…
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Medium 6.5
Qemu: vnc: null pointer dereference in qemu_clipboard_request()
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. The qemu_clipboard_request() function can be reached before vnc_server_cut_text_caps() was called and had the chance to initialize the clipboard peer, leading to a NULL …
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Medium 6.4
Qemu: improper ide controller reset can lead to mbr overwrite
A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored…
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Medium 4.9
Qemu: virtio-net: stack buffer overflow in virtio_net_flush_tx()
A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could …