Out-of-bounds Read in Qemu
CVE-2015-8817
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (33.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Qemu — versions 1.6.0, 1.6.1, 1.6.2
Weakness classification (CWE)
References
- rhn.redhat.com/errata/RHSA-2016-2671.html (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking)
- git.qemu.org/
- rhn.redhat.com/errata/RHSA-2016-2706.html (vendor-advisory)
- www.openwall.com/lists/oss-security/2016/03/01/1 (mailing-list, Patch, Mailing List)
- www.openwall.com/lists/oss-security/2016/03/01/10 (mailing-list, Patch, Mailing List)
- rhn.redhat.com/errata/RHSA-2016-2705.html (vendor-advisory)
- lists.gnu.org/archive/html/qemu-stable/2016-01/msg00060.html (mailing-list, Mailing List)
- rhn.redhat.com/errata/RHSA-2016-2670.html (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2016-2704.html (vendor-advisory)
Frequently asked questions
- What is CVE-2015-8817?
- CVE-2015-8817 is a medium-severity vulnerability in Qemu, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2016-12-29.
- How severe is CVE-2015-8817?
- Medium severity. CVSS v3 base score is 5.5 out of 10.