Ubuntu: (CVE-2021-47137): linux vulnerability

Ubuntu: (CVE-2021-47137): linux vulnerability

Severity

4

CVSS

(AV:L/AC:M/Au:N/C:P/I:P/A:P)

Published

03/25/2024

Created

11/21/2024

Added

11/19/2024

Modified

02/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: net: lantiq: fix memory corruption in RX ring In a situation where memory allocation or dma mapping fails, an invalid address is programmed into the descriptor. This can lead to memory corruption. If the memory allocation fails, DMA should reuse the previous skb and mapping and drop the packet. This patch also increments rx drop counter.

Solution(s)

• ubuntu-upgrade-linux
• ubuntu-upgrade-linux-aws
• ubuntu-upgrade-linux-aws-5-4
• ubuntu-upgrade-linux-aws-fips
• ubuntu-upgrade-linux-azure
• 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-5-4
• ubuntu-upgrade-linux-gcp-fips
• ubuntu-upgrade-linux-gkeop
• ubuntu-upgrade-linux-hwe-5-4
• 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-2021-47137
• CVE - 2021-47137
• https://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2
• https://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418
• https://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975d
• https://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20
• https://www.cve.org/CVERecord?id=CVE-2021-47137