Resource Exhaustion Affecting xen package, versions <4.11.1-r0
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Test your applications- Snyk ID SNYK-ALPINE320-XEN-7012356
- published 23 May 2024
- disclosed 17 Aug 2018
Introduced: 17 Aug 2018
CVE-2018-15470 Open this link in a new tabHow to fix?
Upgrade Alpine:3.20 xen to version 4.11.1-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Alpine.
See How to fix? for Alpine:3.20 relevant fixed versions and status.
An issue was discovered in Xen through 4.11.x. The logic in oxenstored for handling writes depended on the order of evaluation of expressions making up a tuple. As indicated in section 7.7.3 "Operations on data structures" of the OCaml manual, the order of evaluation of subexpressions is not specified. In practice, different implementations behave differently. Thus, oxenstored may not enforce the configured quota-maxentity. This allows a malicious or buggy guest to write as many xenstore entries as it wishes, causing unbounded memory usage in oxenstored. This can lead to a system-wide DoS.