CVE-2015-8818

MEDIUM
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

The cpu_physical_memory_write_rom_internal function in exec.c in QEMU (aka Quick Emulator) does not properly skip MMIO regions, which allows local privileged guest users to cause a denial of service (guest crash) via unspecified vectors.

References

http://git.qemu.org/?p=qemu.git;a=commit;h=b242e0e0e2969c044a318e56f7988bbd84de1f63

http://rhn.redhat.com/errata/RHSA-2016-2670.html

http://rhn.redhat.com/errata/RHSA-2016-2671.html

http://rhn.redhat.com/errata/RHSA-2016-2704.html

http://rhn.redhat.com/errata/RHSA-2016-2705.html

http://rhn.redhat.com/errata/RHSA-2016-2706.html

http://www.openwall.com/lists/oss-security/2016/03/01/1

http://www.openwall.com/lists/oss-security/2016/03/01/10

https://bugzilla.redhat.com/show_bug.cgi?id=1300771

Details

Source: MITRE

Published: 2016-12-29

Updated: 2020-11-10

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to 2.3.1 (inclusive)

Tenable Plugins

View all (8 total)

IDNameProductFamilySeverity
93170SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:1703-1)NessusSuSE Local Security Checks
critical
91980openSUSE Security Update : qemu (openSUSE-2016-839)NessusSuSE Local Security Checks
critical
91660SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:1560-1)NessusSuSE Local Security Checks
critical
91249SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:1318-1)NessusSuSE Local Security Checks
critical
90396SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2016:0955-1)NessusSuSE Local Security Checks
critical
90186SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:0873-1)NessusSuSE Local Security Checks
critical
90045Fedora 23 : xen-4.5.2-9.fc23 (2016-f4504e9445)NessusFedora Local Security Checks
high
90036Fedora 22 : xen-4.5.2-9.fc22 (2016-38b20aa50f)NessusFedora Local Security Checks
high