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Red Hat: CVE-2023-42754: kernel: ipv4: NULL pointer dereference in ipv4_send_dest_unreach() (Multiple Advisories)

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Red Hat: CVE-2023-42754: kernel: ipv4: NULL pointer dereference in ipv4_send_dest_unreach() (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
10/05/2023
Created
05/24/2024
Added
05/23/2024
Modified
05/23/2024

Description

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

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