Improper input validation in Qemu
CVE-2015-8744
QEMU (aka Quick Emulator) built with a VMWARE VMXNET3 paravirtual NIC emulator support is vulnerable to crash issue. It occurs when a guest sends a Layer-2 packet smaller than 22 bytes. A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the QEMU process instance resulting in DoS.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
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: 0.004 (31.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.1% 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
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/79821 (VDB Entry, Third Party Advisory, vdb-entry)
- git.qemu.org/
- www.openwall.com/lists/oss-security/2016/01/04/3 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/01/04/6 (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2016/dsa-3471 (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1034576 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201602-01 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-8744?
- CVE-2015-8744 is a medium-severity vulnerability in Qemu, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2016-12-29.
- How severe is CVE-2015-8744?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2015-8744 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.