VULNERABILITY

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

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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
03/04/2024
Created
11/21/2024
Added
11/19/2024
Modified
01/30/2025

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-aws
  • ubuntu-upgrade-linux-image-4-4-0-1140-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1177-aws
  • ubuntu-upgrade-linux-image-4-4-0-262-generic
  • ubuntu-upgrade-linux-image-4-4-0-262-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

References

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