CVE-2015-7549
published 2017-10-30CVE-2015-7549: The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer…
PriorityP417medium6CVSS 3.0
AVLACLPRHUINSCCNINAH
EPSS
0.38%
30.3th percentile
The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define the .write method.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | qemu | < qemu 1:2.5+dfsg-1 (bookworm) | qemu 1:2.5+dfsg-1 (bookworm) |
| qemu | qemu | < 2.5.0 | 2.5.0 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-1 | 1:2.5+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-1 | 1:2.5+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-1 | 1:2.5+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-1 | 1:2.5+dfsg-1 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.22 | 2.0.0+dfsg-2ubuntu1.22 |
CVSS provenance
nvdv3.06.0MEDIUMCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv6.0MEDIUM
vendor_debian6.0MEDIUM
vendor_redhat6.0MEDIUM
vendor_ubuntu6.0MEDIUM
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GHSA
GHSA-v683-5725-54rp: The MSI-X MMIO support in hw/pci/msix
ghsa_unreviewed·2022-05-17
CVE-2015-7549 [MEDIUM] CWE-476 GHSA-v683-5725-54rp: The MSI-X MMIO support in hw/pci/msix
The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define the .write method.
OSV
CVE-2015-7549: The MSI-X MMIO support in hw/pci/msix
osv·2017-10-30·CVSS 6.0
CVE-2015-7549 [MEDIUM] CVE-2015-7549: The MSI-X MMIO support in hw/pci/msix
The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define the .write method.
OSV
qemu, qemu-kvm vulnerabilities
osv·2016-02-03·CVSS 6.0
CVE-2015-7549 [MEDIUM] qemu, qemu-kvm vulnerabilities
qemu, qemu-kvm vulnerabilities
Qinghao Tang discovered that QEMU incorrectly handled PCI MSI-X support. An
attacker inside the guest could use this issue to cause QEMU to crash,
resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS
and Ubuntu 15.10. (CVE-2015-7549)
Lian Yihan discovered that QEMU incorrectly handled the VNC server. A
remote attacker could use this issue to cause QEMU to crash, resulting in a
denial of service. (CVE-2015-8504)
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Qinghao Tang discovered th
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2016-02-03·CVSS 6.0
CVE-2015-7549 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Qinghao Tang discovered that QEMU incorrectly handled PCI MSI-X support. An
attacker inside the guest could use this issue to cause QEMU to crash,
resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS
and Ubuntu 15.10. (CVE-2015-7549)
Lian Yihan discovered that QEMU incorrectly handled the VNC server. A
remote attacker could use this issue to cause QEMU to crash, resulting in a
denial of service. (CVE-2015-8504)
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on th
Red Hat
Qemu: pci: null pointer dereference issue
vendor_redhat·2015-10-24·CVSS 6.0
CVE-2015-7549 [MEDIUM] CWE-476 Qemu: pci: null pointer dereference issue
Qemu: pci: null pointer dereference issue
The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define the .write method.
A NULL pointer dereference vulnerability was found in the QEMU emulator built with PCI MSI-X support. Because MSI-X MMIO support did not define the .write method, when the controller tried to write to the pending bit array(PBA) memory region, a segmentation fault occurred. A privileged attacker inside the guest could use this flaw to crash the QEMU process resulting in denial of service.
Statement: This issue does not affect the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5.
Thi
Debian
CVE-2015-7549: qemu - The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows loca...
vendor_debian·2015·CVSS 6.0
CVE-2015-7549 [MEDIUM] CVE-2015-7549: qemu - The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows loca...
The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define the .write method.
Scope: local
bookworm: resolved (fixed in 1:2.5+dfsg-1)
bullseye: resolved (fixed in 1:2.5+dfsg-1)
forky: resolved (fixed in 1:2.5+dfsg-1)
sid: resolved (fixed in 1:2.5+dfsg-1)
trixie: resolved (fixed in 1:2.5+dfsg-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2015-7549 Qemu: pci: null pointer dereference issue
bugzilla·2015-12-14·CVSS 6.0
CVE-2015-7549 [MEDIUM] CVE-2015-7549 Qemu: pci: null pointer dereference issue
CVE-2015-7549 Qemu: pci: null pointer dereference issue
Qemu emulator built with the PCI MSI-X support is vulnerable to null pointer
dereference issue. It occurs when the controller attempts to write to the
pending bit array(PBA) memory region. Because the MSI-X MMIO support did not
define the .write method.
A privileges used inside guest could use this flaw to crash the Qemu process
resulting in DoS issue.
Upstream fix:
-> http://git.qemu.org/?p=qemu.git;a=commit;h=43b11a91dd861a946b231b89b754285
Reference:
-> http://www.openwall.com/lists/oss-security/2015/12/14/2
Discussion:
Created xen tracking bugs for this issue:
Affects: fedora-all [bug 1291139]
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1291138]
---
Statement:
This issue does not affect the
Bugzilla
CVE-2015-7549 Qemu: pci: null pointer dereference issue [fedora-all]
bugzilla·2015-12-14·CVSS 6.0
CVE-2015-7549 [MEDIUM] CVE-2015-7549 Qemu: pci: null pointer dereference issue [fedora-all]
CVE-2015-7549 Qemu: pci: null pointer dereference issue [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.
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 versions of Fedora. W
Bugzilla
CVE-2015-7549 xen: Qemu: pci: null pointer dereference issue [fedora-all]
bugzilla·2015-12-14·CVSS 6.0
CVE-2015-7549 [MEDIUM] CVE-2015-7549 xen: Qemu: pci: null pointer dereference issue [fedora-all]
CVE-2015-7549 xen: Qemu: pci: null pointer dereference issue [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.
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 versions of Fedo
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=43b11a91dd861a946b231b89b754285http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175380.htmlhttp://www.debian.org/security/2016/dsa-3471http://www.openwall.com/lists/oss-security/2015/12/14/2http://www.securityfocus.com/bid/80761https://bugzilla.redhat.com/show_bug.cgi?id=1291137https://security.gentoo.org/glsa/201602-01http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=43b11a91dd861a946b231b89b754285http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175380.htmlhttp://www.debian.org/security/2016/dsa-3471http://www.openwall.com/lists/oss-security/2015/12/14/2http://www.securityfocus.com/bid/80761https://bugzilla.redhat.com/show_bug.cgi?id=1291137https://security.gentoo.org/glsa/201602-01
2017-10-30
Published