An issue exists in xenoprof in Xen up to and including 4.13.x, allowing guest OS users (with active profiling) to obtain sensitive information about other guests, cause a denial of service, or possibly gain privileges. For guests for which "active" profiling was enabled by the administrator, the xenoprof code uses the standard Xen shared ring structure. Unfortunately, this code did not treat the guest as a potential adversary: it trusts the guest not to modify buffer size information or modify head / tail pointers in unexpected ways. This can crash the host (DoS). Privilege escalation cannot be ruled out.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
xen xen |
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xen xen 4.13.0 |
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fedoraproject fedora 30 |
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fedoraproject fedora 31 |
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fedoraproject fedora 32 |
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debian debian linux 10.0 |
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opensuse leap 15.1 |
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