vulnerability
Gentoo Linux: CVE-2018-15470: Xen: Multiple vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:N/I:N/A:C) | Aug 17, 2018 | Oct 31, 2018 | Mar 31, 2026 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Aug 17, 2018
Added
Oct 31, 2018
Modified
Mar 31, 2026
Description
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.
Solutions
gentoo-linux-upgrade-app-emulation-xengentoo-linux-upgrade-app-emulation-xen-tools
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