CVE-2015-8817
Vulnerability Summary
Timeline
Description
QEMU (aka Quick Emulator) built to use 'address_space_translate' to map an address to a MemoryRegionSection is vulnerable to an OOB r/w access issue. It could occur while doing pci_dma_read/write calls. Affects QEMU versions >= 1.6.0 and <= 2.3.1. A privileged user inside guest could use this flaw to crash the guest instance resulting in DoS.
CVSS Metrics
- v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 0.09%• Percentile: 25%
Techniques & Countermeasures
- CWE-125•Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
- CWE-787•Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
Affected Systems
- qemu•qemu
1.6.0 | 1.6.0:rc1 | 1.6.0:rc2 | 1.6.0:rc3 | 1.6.1 | 1.6.2 | 1.7.1 | 2.0.0 | 2.0.0:rc0 | 2.0.0:rc1 | 2.0.0:rc2 | 2.0.0:rc3 | 2.0.2 | 2.1.0 | 2.1.0:rc0 | 2.1.0:rc1 | 2.1.0:rc2 | 2.1.0:rc3 | 2.1.0:rc5 | 2.1.1 | 2.1.2 | 2.1.3 | 2.2.0 | 2.2.1 | 2.3.0 | 2.3.1
References (11)
- http://rhn.redhat.com/errata/RHSA-2016-2671.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1300771
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=23820dbfc79d1c9dce090b4c555994f2bb6a69b3
- 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
- http://rhn.redhat.com/errata/RHSA-2016-2705.html
- https://lists.gnu.org/archive/html/qemu-stable/2016-01/msg00060.html
- http://rhn.redhat.com/errata/RHSA-2016-2670.html
- http://rhn.redhat.com/errata/RHSA-2016-2704.html
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=c3c1bb99d1c11978d9ce94d1bdcf0705378c1459