CVE-2016-9386 The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/...
HighCVSS 7.8
EPSS 0.45%
- Published
- Updated
- Exploit status
- No public exploit known
Description
The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/limit values.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/xen(Debian:12) | < 4.8.0-1 | 4.8.0-1 |
| debian/xen(Debian:13) | < 4.8.0-1 | 4.8.0-1 |
| debian/xen(Debian:14) | < 4.8.0-1 | 4.8.0-1 |
| citrix xenserver | = 6.0.2 | No fix listed |
| citrix xenserver | = 6.2.0 | No fix listed |
| citrix xenserver | = 6.5 | No fix listed |
| citrix xenserver | = 7.0 | No fix listed |
| Xen | All versions | No fix listed |
| alpine/xen(Alpine:v3.10) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.11) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.12) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.13) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.14) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.15) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.16) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.17) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.18) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.19) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.20) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.21) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.22) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.23) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.24) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.5) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.6) | < 4.7.1-r1 | 4.7.1-r1 |
Show 3 more
| Product | Affected versions | Fixed in |
|---|---|---|
| alpine/xen(Alpine:v3.7) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.8) | < 4.7.1-r1 | 4.7.1-r1 |
| alpine/xen(Alpine:v3.9) | < 4.7.1-r1 | 4.7.1-r1 |
References
- Debian Security Tracker CVE-2016-9386 vendor-advisory
- 94471 third-party-advisory vdb-entry
- 1037340 third-party-advisory vdb-entry
- xenbits.xen.org patch vendor-advisory
- GLSA-201612-56 vendor-advisory
- support.citrix.com patch third-party-advisory
- security.alpinelinux.org vendor-advisory
- bugs.debian.org issue-tracking