CVE-2015-7972
Last modified
CVE-2015-7972 is a vulnerability of currently unknown severity. The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to "heavy memory pressure.". EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to "heavy memory pressure."
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | 3.4.0 |
| Xen | Xen | 3.4.1 |
| Xen | Xen | 3.4.2 |
| Xen | Xen | 3.4.3 |
| Xen | Xen | 3.4.4 |
| Xen | Xen | 4.0.0 |
| Xen | Xen | 4.0.1 |
| Xen | Xen | 4.0.2 |
| Xen | Xen | 4.0.3 |
| Xen | Xen | 4.0.4 |
| Xen | Xen | 4.1.0 |
| Xen | Xen | 4.1.1 |
| Xen | Xen | 4.1.2 |
| Xen | Xen | 4.1.3 |
| Xen | Xen | 4.1.4 |
| Xen | Xen | 4.1.5 |
| Xen | Xen | 4.1.6.1 |
| Xen | Xen | 4.2.0 |
| Xen | Xen | 4.2.1 |
| Xen | Xen | 4.2.2 |
| Xen | Xen | 4.2.3 |
| Xen | Xen | 4.3.0 |
| Xen | Xen | 4.3.1 |
| Xen | Xen | 4.3.2 |
| Xen | Xen | 4.3.4 |
| Xen | Xen | 4.4.0 |
| Xen | Xen | 4.4.1 |
| Xen | Xen | 4.5.0 |
| Xen | Xen | 4.5.1 |
| Xen | Xen | 4.6.0 |
References
- http://xenbits.xen.org/xsa/advisory-153.htmlVendor Advisory
- http://xenbits.xen.org/xsa/advisory-153.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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