Vulnerability in Qemu
CVE-2016-2858
QEMU, when built with the Pseudo Random Number Generator (PRNG) back-end support, allows local guest OS users to cause a denial of service (process crash) via an entropy request, which triggers arbitrary stack based allocation and memory corruption.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.9% 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
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2016/03/07/4 (mailing-list, Mailing List, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- git.qemu.org/
- security.gentoo.org/glsa/201604-01 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/84134 (VDB Entry, Third Party Advisory, vdb-entry)
- www.ubuntu.com/usn/USN-2974-1 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/03/04/1 (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/11/msg00038.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-2858?
- CVE-2016-2858 is a medium-severity vulnerability in Qemu, classified under Insufficient Entropy. CVSS score: 6.5/10. Published 2016-04-07.
- How severe is CVE-2016-2858?
- Medium severity. CVSS v3 base score is 6.5 out of 10.