Bug 2104746 (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742, XSA-403)
Summary: | CVE-2022-26365 CVE-2022-33740 CVE-2022-33741 CVE-2022-33742 xen: Linux disk/nic frontends data leaks | ||
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Product: | [Other] Security Response | Reporter: | Sandipan Roy <saroy> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED UPSTREAM | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | unspecified | CC: | jforbes, m.a.young |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | --- | |
Doc Text: |
Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend. Additionally, the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend.
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Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2022-07-07 08:40:51 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | 2104747 | ||
Bug Blocks: | 2101814 |
Description
Sandipan Roy
2022-07-07 05:09:29 UTC
Created xen tracking bugs for this issue: Affects: fedora-all [bug 2104747] This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products. |