Out-of-bounds Read in Qemu
CVE-2017-7718
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.4% 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 — versions 2.9.0
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- www.securityfocus.com/bid/97957 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2017:0983 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:0982 (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2018/09/msg00007.html (mailing-list, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1430 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201706-03 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1206 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1431 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:0984 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-7718?
- CVE-2017-7718 is a medium-severity vulnerability in Qemu, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2017-04-20.
- How severe is CVE-2017-7718?
- Medium severity. CVSS v3 base score is 5.5 out of 10.