vulnerability
Oracle Linux: CVE-2018-7550: ELSA-2018-2462: qemu-kvm security and bug fix update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:H/Au:S/C:C/I:C/A:C) | 2018-02-27 | 2018-08-17 | 2025-01-07 |
Severity
6
CVSS
(AV:L/AC:H/Au:S/C:C/I:C/A:C)
Published
2018-02-27
Added
2018-08-17
Modified
2025-01-07
Description
The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access.
Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur while loading a kernel image during the guest boot, if mh_load_end_addr address is greater than the mh_bss_end_addr address. A user or process could use this flaw to potentially achieve arbitrary code execution on a host.
Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur while loading a kernel image during the guest boot, if mh_load_end_addr address is greater than the mh_bss_end_addr address. A user or process could use this flaw to potentially achieve arbitrary code execution on a host.
Solution(s)
oracle-linux-upgrade-ivshmem-toolsoracle-linux-upgrade-qemuoracle-linux-upgrade-qemu-block-glusteroracle-linux-upgrade-qemu-block-iscsioracle-linux-upgrade-qemu-block-rbdoracle-linux-upgrade-qemu-commonoracle-linux-upgrade-qemu-imgoracle-linux-upgrade-qemu-kvmoracle-linux-upgrade-qemu-kvm-commonoracle-linux-upgrade-qemu-kvm-coreoracle-linux-upgrade-qemu-kvm-toolsoracle-linux-upgrade-qemu-system-aarch64oracle-linux-upgrade-qemu-system-aarch64-coreoracle-linux-upgrade-qemu-system-x86oracle-linux-upgrade-qemu-system-x86-core
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