CVE-2018-7550
HIGH severity · CVSS 8.8 · Out-of-bounds read
8.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=1549798Advisory
- http://www.securityfocus.com/bid/103181Advisory
- https://access.redhat.com/errata/RHSA-2018:1369Advisory
- https://access.redhat.com/errata/RHSA-2018:2462Advisory
- https://github.com/orangecertcc/security-research/security/advisories/GHSA-f49v-45qp-cv53
- https://lists.debian.org/debian-lts-announce/2018/04/msg00015.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2018/04/msg00016.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlAdvisory