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CVE-2024-1086 Double free

Immediate
Remediate Within 48 Hours

CVE Information

Original CVE data

Published:
Updated:

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

CWE: CWE-416
CVSS v2-
CVSS v37.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f342de4e2f33e0e39165d8639387aa6c19dff660
https://kernel.dance/f342de4e2f33e0e39165d8639387aa6c19dff660
https://lists.fedoraproject.org/archives/list/[email protected]/message/7LSPIOMIJYTLZB6QKPQVVAYSUETUWKPF/
https://github.com/Notselwyn/CVE-2024-1086
https://news.ycombinator.com/item?id=39828424
https://pwning.tech/nftables/
http://www.openwall.com/lists/oss-security/2024/04/15/2
http://www.openwall.com/lists/oss-security/2024/04/10/23
http://www.openwall.com/lists/oss-security/2024/04/10/22
http://www.openwall.com/lists/oss-security/2024/04/14/1
http://www.openwall.com/lists/oss-security/2024/04/17/5
Affected Vendors

Fedoraproject - (1)

Linux - (1)

Redhat - (6)

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOnengine

Double free

CVSS Scores as calculated by PRIOnengine
CVSS v26.1
AV:L/AC:L/AU:N/C:P/I:C/A:P
CVSS v37.8
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
MITRE CWE Top 25

Vulnerability weakness type is in the top 25 CWEs according to MITRE. View Mitre Top 25 CWEs

Exploits

Exploits are available either through exploit packs, Github repos or the world wide web in general.

Active Exploitation

Vulnerability is referenced under CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

-

Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

T1529 - System Shutdown/Reboot
T1499.004 - Endpoint Denial of Service (Application or System Exploitation)
T1203 - Exploitation for Client Execution
T1068 - Exploitation for Privilege Escalation
T1059 - Command and Scripting Interpreter

Compliance Impact

How the submited vulnerability affects compliance

PCI DSS v3.2.1-6.5.2 - Buffer Overflows

Web Application Security Frameworks

Applicable if the issue likely affects a web application

-