FKIE_CVE-2023-42754

Vulnerability from fkie_nvd - Published: 2023-10-05 19:15 - Updated: 2026-06-17 06:24
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:2394
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:2950
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:3138
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-42754Patch, Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2239845Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://seclists.org/oss-sec/2023/q4/14Exploit, Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:2394
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:2950
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:3138
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-42754Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2239845Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/
af854a3a-2127-422b-91ae-364da2661108https://seclists.org/oss-sec/2023/q4/14Exploit, Mailing List, Patch, Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.6
linux linux_kernel 6.6
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
fedoraproject fedora 37
fedoraproject fedora 38
fedoraproject fedora 39
To clipboard 

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    },
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      "lang": "es",
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  "lastModified": "2026-06-17T06:24:26.683",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.