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Ubuntu: (CVE-2021-47358): linux vulnerability

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Ubuntu: (CVE-2021-47358): linux vulnerability

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
05/21/2024
Created
11/21/2024
Added
11/19/2024
Modified
02/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the last user is gone. Switch to using the tty-port reference counter to manage the life time of the greybus tty state to avoid use after free after a disconnect.

Solution(s)

  • ubuntu-upgrade-linux
  • ubuntu-upgrade-linux-aws
  • ubuntu-upgrade-linux-aws-5-4
  • ubuntu-upgrade-linux-aws-fips
  • ubuntu-upgrade-linux-aws-hwe
  • ubuntu-upgrade-linux-azure
  • ubuntu-upgrade-linux-azure-4-15
  • ubuntu-upgrade-linux-azure-5-4
  • ubuntu-upgrade-linux-azure-fips
  • ubuntu-upgrade-linux-bluefield
  • ubuntu-upgrade-linux-fips
  • ubuntu-upgrade-linux-gcp
  • ubuntu-upgrade-linux-gcp-4-15
  • ubuntu-upgrade-linux-gcp-5-4
  • ubuntu-upgrade-linux-gcp-fips
  • ubuntu-upgrade-linux-gkeop
  • ubuntu-upgrade-linux-hwe
  • ubuntu-upgrade-linux-hwe-5-4
  • ubuntu-upgrade-linux-ibm
  • ubuntu-upgrade-linux-kvm
  • ubuntu-upgrade-linux-oracle
  • ubuntu-upgrade-linux-oracle-5-4
  • ubuntu-upgrade-linux-raspi
  • ubuntu-upgrade-linux-raspi-5-4

References

  • https://attackerkb.com/topics/cve-2021-47358
  • CVE - 2021-47358
  • https://git.kernel.org/linus/92dc0b1f46e12cfabd28d709bb34f7a39431b44f
  • https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14
  • https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f
  • https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d
  • https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f
  • https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1
  • https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69
  • https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6
  • https://www.cve.org/CVERecord?id=CVE-2021-47358
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