vulnerability

Ubuntu: (Multiple Advisories) (CVE-2022-2639): Linux kernel vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Aug 23, 2022
Added
Oct 1, 2022
Modified
Aug 18, 2025

Description

An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Solutions

ubuntu-upgrade-linux-image-4-4-0-1113-awsubuntu-upgrade-linux-image-4-4-0-1114-kvmubuntu-upgrade-linux-image-4-4-0-1151-awsubuntu-upgrade-linux-image-4-4-0-234-genericubuntu-upgrade-linux-image-4-4-0-234-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-lts-xenial

References

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