Buffer overflow in Qemu
CVE-2017-7980
Heap-based buffer overflow in Cirrus CLGD 54xx VGA Emulator in Quick Emulator (Qemu) 2.8 and earlier allows local guest OS users to execute arbitrary code or cause a denial of service (crash) via vectors related to a VNC client updating its display after a VGA operation.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Qemu
- Canonical Ubuntu Linux — versions 14.04, 16.04, 16.10
- Debian Linux — versions 8.0
- Red Hat Enterprise Linux — versions 7.0, 6.0
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.3, 7.4, 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.3, 7.4, 7.5
- Red Hat Enterprise Linux Server Tus — versions 7.3, 7.6
- Red Hat Enterprise Linux Workstation — versions 6.0, 7.0
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2017:0983 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/04/21/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:0982 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/09/msg00007.html (mailing-list, 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, Patch, VDB Entry, Third Party Advisory)
- ubuntu.com/usn/usn-3289-1 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1206 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/97955 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/102129 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-7980?
- CVE-2017-7980 is a high-severity vulnerability in Qemu, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2017-07-25.
- How severe is CVE-2017-7980?
- High severity. CVSS v3 base score is 7.8 out of 10.