Out-of-bounds Read in Qemu
CVE-2017-11334
The address_space_write_continue function in exec.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds access and guest instance crash) by leveraging use of qemu_map_ram_ptr to access guest ram block area.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Qemu
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2017:3473 (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- access.redhat.com/errata/RHSA-2017:3470 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:3472 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/07/17/4 (mailing-list, Patch, Mailing List, Third Party Advisory)
- lists.gnu.org/archive/html/qemu-devel/2017-07/msg03775.html (Vendor Advisory, mailing-list, Patch, Mailing List)
- access.redhat.com/errata/RHSA-2017:3474 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3575-1/ (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:3471 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/99895 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-11334?
- CVE-2017-11334 is a medium-severity vulnerability in Qemu, classified under Out-of-bounds Read. CVSS score: 4.4/10. Published 2017-08-02.
- How severe is CVE-2017-11334?
- Medium severity. CVSS v3 base score is 4.4 out of 10.
- Is CVE-2017-11334 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.