CVE-2016-2858
medium
CVSS v3
6.5
CVSS v2
1.9
VIR risk
6.5
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.
Predictions
Exploit likelihood
65%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-2858
Vendor advisory: secalert@redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=1314676
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-2858.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| ubuntu | 12.04 | affected | |
| ubuntu | 14.04 | affected | |
| ubuntu | 15.10 | affected | |
| ubuntu | 16.04 | affected | |
| debian | 8.0 | affected | |
| debian | bookworm | fixed | 1:2.6+dfsg-1 |
| debian | bullseye | fixed | 1:2.6+dfsg-1 |
| debian | forky | fixed | 1:2.6+dfsg-1 |
| debian | sid | fixed | 1:2.6+dfsg-1 |
| debian | trixie | fixed | 1:2.6+dfsg-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| qemu | qemu | {"endIncluding":"2.5.1.1"} | |
References
- https://www.suse.com/security/cve/CVE-2016-2858.html
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=60253ed1e6ec6d8e5ef2efe7bf755f475dce9956
- http://www.openwall.com/lists/oss-security/2016/03/04/1
- http://www.openwall.com/lists/oss-security/2016/03/07/4
- http://www.securityfocus.com/bid/84134
- http://www.ubuntu.com/usn/USN-2974-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1314676
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://security.gentoo.org/glsa/201604-01
- https://security-tracker.debian.org/tracker/CVE-2016-2858
CWEs
CWE-331
Verify integrity in audit chain (admin only). AS-IS.