vulnerability

Ubuntu: (Multiple Advisories) (CVE-2021-47086): Linux kernel vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Mar 4, 2024
Added
Nov 19, 2024
Modified
Jan 30, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

phonet/pep: refuse to enable an unbound pipe

This ioctl() implicitly assumed that the socket was already bound to
a valid local socket name, i.e. Phonet object. If the socket was not
bound, two separate problems would occur:

1) We'd send an pipe enablement request with an invalid source object.
2) Later socket calls could BUG on the socket unexpectedly being
connected yet not bound to a valid object.

Solution(s)

ubuntu-upgrade-linux-image-4-4-0-1139-awsubuntu-upgrade-linux-image-4-4-0-1140-kvmubuntu-upgrade-linux-image-4-4-0-1177-awsubuntu-upgrade-linux-image-4-4-0-262-genericubuntu-upgrade-linux-image-4-4-0-262-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
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