Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 2.5.1.1 |
| Canonical | Ubuntu Linux | 12.04 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=60253ed1e6ec6d8e5ef2efe7bf755f475
- http://www.openwall.com/lists/oss-security/2016/03/04/1Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/03/07/4Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/84134Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2974-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1314676Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/201604-01Third Party Advisory
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=60253ed1e6ec6d8e5ef2efe7bf755f475
- http://www.openwall.com/lists/oss-security/2016/03/04/1Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/03/07/4Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/84134Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2974-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1314676Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2016-2858?
CVE-2016-2858 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 arbitr...
How severe is CVE-2016-2858?
CVE-2016-2858 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-2858?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Canonical Ubuntu Linux, Debian Debian Linux.