High severity · published Mar 1, 2018
CVE-2018-7550
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…
8.8
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0; 8.0; 9.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.6; 7.7 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.5; 7.6; 7.7 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.6; 7.7 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
QE
Qemu · Qemu
through 2.11.1 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 17.10; 18.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-7550
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-7550
Third Party Advisory
http://www.securityfocus.com/bid/103181
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1369
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2462
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1549798
github.com
https://github.com/orangecertcc/security-research/security/advisories/GHSA-f49v-45qp-cv53
Mailing List
https://lists.debian.org/debian-lts-announce/2018/04/msg00015.html
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