CVE-2016-2858
MEDIUM severity · CVSS 6.5 · CWE-331
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=1314676 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=1314676Patch
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=60253ed1e6ec6d8e5ef2efe7bf755f475dce9956
- http://www.openwall.com/lists/oss-security/2016/03/04/1Advisory
- http://www.openwall.com/lists/oss-security/2016/03/07/4Advisory
- http://www.securityfocus.com/bid/84134Advisory
- http://www.ubuntu.com/usn/USN-2974-1Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlAdvisory
- https://security.gentoo.org/glsa/201604-01Advisory