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CVE-2023-42754

Date: October 5, 2023

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.

Language: C

Severity Score

5.5

Related Resources (12)

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/

Url: https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Url: https://nvd.nist.gov/vuln/detail/CVE-2023-42754

Url: https://access.redhat.com/errata/RHSA-2024:2394

Url: https://seclists.org/oss-sec/2023/q4/14

Url: https://access.redhat.com/security/cve/CVE-2023-42754

Url: https://access.redhat.com/errata/RHSA-2024:3138

Url: https://access.redhat.com/errata/RHSA-2024:2950

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/

Url: https://bugzilla.redhat.com/show_bug.cgi?id=2239845

Url: https://www.mend.io/vulnerability-database/CVE-2023-42754

Severity Score

5.5

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

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CVE-2023-42754

Date: October 5, 2023

Language: C

Severity Score

Related Resources (12)

Severity Score

Weakness Type (CWE)

CVSS v3.1

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