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CVE-2023-42756

Date: September 28, 2023

A flaw was found in the Netfilter subsystem of the Linux kernel. A race condition between IPSET_CMD_ADD and IPSET_CMD_SWAP can lead to a kernel panic due to the invocation of "__ip_set_put" on a wrong "set". This issue may allow a local user to crash the system.

Language: C

Severity Score

Related Resources (10)

https://bugzilla.redhat.com/show_bug.cgi?id=2239848
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
https://access.redhat.com/errata/RHSA-2024:2394
https://nvd.nist.gov/vuln/detail/CVE-2023-42756
https://seclists.org/oss-sec/2023/q3/242
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/
https://access.redhat.com/security/cve/CVE-2023-42756
https://www.mend.io/vulnerability-database/CVE-2023-42756

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

CVSS v3.1

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

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