Riskcovery

CVE-2023-42754

Kernel: ipv4: null pointer dereference in ipv4_send_dest_unreach()

State
Published
Severity
5.5 Medium
Published
Oct 5, 2023
Updated
Oct 14, 2026
Reserved
Sep 13, 2023

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.15.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hredhat

Weaknesses

Affected Products

ProductVersions
Red Hat Enterprise Linux 8Red Hat
  • 0:4.18.0-553.rt7.342.el8_10 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:4.18.0-553.el8_10 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:5.14.0-427.13.1.el9_4 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:5.14.0-427.13.1.el9_4 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 7Red Hat
        Red Hat Enterprise Linux 9Red Hat

          References

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