CVE-2018-7550
published 2018-03-01CVE-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…
PriorityP343high8.8CVSS 3.1
AVLACLPRLUINSCCHIHAH
EPSS
0.61%
45.8th percentile
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.
Affected
26 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.12~rc3+dfsg-1 (bookworm) | qemu 1:2.12~rc3+dfsg-1 (bookworm) |
| qemu | qemu | <= 2.11.1 | — |
| qemu | qemu | >= 0 < 1:2.12~rc3+dfsg-1 | 1:2.12~rc3+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.12~rc3+dfsg-1 | 1:2.12~rc3+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.12~rc3+dfsg-1 | 1:2.12~rc3+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.12~rc3+dfsg-1 | 1:2.12~rc3+dfsg-1 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.41 | 2.0.0+dfsg-2ubuntu1.41 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.28 | 1:2.5+dfsg-5ubuntu10.28 |
| qemu | qemu | >= 0 < 1:2.11+dfsg-1ubuntu7.1 | 1:2.11+dfsg-1ubuntu7.1 |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_eus | — | — |
| redhat | enterprise_linux_server_eus | — | — |
| redhat | enterprise_linux_server_eus | — | — |
| redhat | enterprise_linux_server_tus | — | — |
| redhat | enterprise_linux_server_tus | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
osv10.0CRITICAL
vendor_ubuntu10.0CRITICAL
vendor_debian8.8HIGH
vendor_redhat8.8HIGH
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GHSA
GHSA-6q85-h749-54pf: The load_multiboot function in hw/i386/multiboot
ghsa_unreviewed·2022-05-13
CVE-2018-7550 [HIGH] CWE-125 GHSA-6q85-h749-54pf: The load_multiboot function in hw/i386/multiboot
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.
OSV
qemu vulnerabilities
osv·2018-05-16·CVSS 10.0
CVE-2017-16845 [CRITICAL] qemu vulnerabilities
qemu vulnerabilities
Cyrille Chatras discovered that QEMU incorrectly handled certain PS2 values
during migration. An attacker could possibly use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 18.04 LTS. (CVE-2017-16845)
Cyrille Chatras discovered that QEMU incorrectly handled multiboot. An
attacker could use this issue to cause QEMU to crash, resulting in a denial
of service, or possibly execute arbitrary code on the host. In the default
installation, when QEMU is used with libvirt, attackers would be isolated
by the libvirt AppArmor profile. (CVE-2018-7550)
Ross Lagerwall discovered that QEMU incorrectly handled the Cirrus VGA
device. A privileged attacker inside the guest could use this issue to
OSV
CVE-2018-7550: The load_multiboot function in hw/i386/multiboot
osv·2018-03-01·CVSS 8.8
CVE-2018-7550 [HIGH] CVE-2018-7550: The load_multiboot function in hw/i386/multiboot
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.
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2018-05-16·CVSS 10.0
CVE-2017-16845 [CRITICAL] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Cyrille Chatras discovered that QEMU incorrectly handled certain PS2 values
during migration. An attacker could possibly use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 18.04 LTS. (CVE-2017-16845)
Cyrille Chatras discovered that QEMU incorrectly handled multiboot. An
attacker could use this issue to cause QEMU to crash, resulting in a denial
of service, or possibly execute arbitrary code on the host. In the default
installation, when QEMU is used with libvirt, attackers would be isolated
by the libvirt AppArmor profile. (CVE-2018-7550)
Ross Lagerwall discovered that QEMU incorrectly handled the Cirrus VGA
device. A
Red Hat
QEMU: i386: multiboot OOB access while loading kernel image
vendor_redhat·2018-02-27·CVSS 8.8
CVE-2018-7550 [HIGH] CWE-787 QEMU: i386: multiboot OOB access while loading kernel image
QEMU: i386: multiboot OOB access while loading kernel image
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.
Package: kvm (Red Hat Enterprise Linux 5) - Not affected
Package: xen (Red Hat E
Debian
CVE-2018-7550: qemu - The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) ...
vendor_debian·2018·CVSS 8.8
CVE-2018-7550 [HIGH] CVE-2018-7550: qemu - The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) ...
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.
Scope: local
bookworm: resolved (fixed in 1:2.12~rc3+dfsg-1)
bullseye: resolved (fixed in 1:2.12~rc3+dfsg-1)
forky: resolved (fixed in 1:2.12~rc3+dfsg-1)
sid: resolved (fixed in 1:2.12~rc3+dfsg-1)
trixie: resolved (fixed in 1:2.12~rc3+dfsg-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-7550 Qemu: i386: multiboot OOB access while loading kernel image [fedora-all]
bugzilla·2018-02-27·CVSS 8.8
CVE-2018-7550 [HIGH] CVE-2018-7550 Qemu: i386: multiboot OOB access while loading kernel image [fedora-all]
CVE-2018-7550 Qemu: i386: multiboot OOB access while loading kernel image [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported
Bugzilla
CVE-2018-7550 Qemu: i386: multiboot OOB access while loading kernel image [fedora-all]
bugzilla·2018-02-27·CVSS 8.8
CVE-2018-7550 [HIGH] CVE-2018-7550 Qemu: i386: multiboot OOB access while loading kernel image [fedora-all]
CVE-2018-7550 Qemu: i386: multiboot OOB access while loading kernel image [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported
Bugzilla
CVE-2018-7550 QEMU: i386: multiboot OOB access while loading kernel image
bugzilla·2018-02-27·CVSS 8.8
CVE-2018-7550 [HIGH] CVE-2018-7550 QEMU: i386: multiboot OOB access while loading kernel image
CVE-2018-7550 QEMU: i386: multiboot OOB access while loading kernel image
Quick Emulator(QEMU) built with the PC System Emulator with multiboot feature
support is vulnerable to an OOB memory access issue. It could occur while
loading a kernel image during a guest boot if multiboot head addresses
mh_load_end_addr was greater than mh_bss_end_addr.
A user/process could use this flaw to potentially achieve arbitrary code
execution on a host.
Upstream patch:
-> https://lists.nongnu.org/archive/html/qemu-devel/2018-03/msg01885.html
Reference:
-> http://www.openwall.com/lists/oss-security/2018/03/08/4
Discussion:
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1549799]
---
Acknowledgments:
Name: Cyrille Chatras (Orange.com), CERT-CC (Orange.com)
---
This issue has
http://www.securityfocus.com/bid/103181https://access.redhat.com/errata/RHSA-2018:1369https://access.redhat.com/errata/RHSA-2018:2462https://bugzilla.redhat.com/show_bug.cgi?id=1549798https://github.com/orangecertcc/security-research/security/advisories/GHSA-f49v-45qp-cv53https://lists.debian.org/debian-lts-announce/2018/04/msg00015.htmlhttps://lists.debian.org/debian-lts-announce/2018/04/msg00016.htmlhttps://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06890.htmlhttps://usn.ubuntu.com/3649-1/https://www.debian.org/security/2018/dsa-4213http://www.securityfocus.com/bid/103181https://access.redhat.com/errata/RHSA-2018:1369https://access.redhat.com/errata/RHSA-2018:2462https://bugzilla.redhat.com/show_bug.cgi?id=1549798https://github.com/orangecertcc/security-research/security/advisories/GHSA-f49v-45qp-cv53https://lists.debian.org/debian-lts-announce/2018/04/msg00015.htmlhttps://lists.debian.org/debian-lts-announce/2018/04/msg00016.htmlhttps://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06890.htmlhttps://usn.ubuntu.com/3649-1/https://www.debian.org/security/2018/dsa-4213
2018-03-01
Published