Linux Kernel up to 6.9.3 enic rtnetlink.c do_setlink memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.9.3 and classified as critical. The affected element is the function do_setlink of the file rtnetlink.c of the component enic. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2024-38659. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.9.3. This issue affects the function do_setlink of the file rtnetlink.c of the component enic. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: enic: Validate length of nl attributes in enic_set_vf_port enic_set_vf_port assumes that the nl attribute IFLA_PORT_PROFILE is of length PORT_PROFILE_MAX and that the nl attributes IFLA_PORT_INSTANCE_UUID, IFLA_PORT_HOST_UUID are of length PORT_UUID_MAX. These attributes are validated (in the function do_setlink in rtnetlink.c) using the nla_policy ifla_port_policy. The policy defines IFLA_PORT_PROFILE as NLA_STRING, IFLA_PORT_INSTANCE_UUID as NLA_BINARY and IFLA_PORT_HOST_UUID as NLA_STRING. That means that the length validation using the policy is for the max size of the attributes and not on exact size so the length of these attributes might be less than the sizes that enic_set_vf_port expects. This might cause an out of bands read access in the memcpys of the data of these attributes in enic_set_vf_port.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2024-38659 since 06/21/2024. The exploitation is known to be easy. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/03/2025).

The vulnerability scanner Nessus provides a plugin with the ID 207738 (Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-7009-2)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.93, 6.6.33 or 6.9.4 eliminates this vulnerability. Applying the patch 2b649d7e0cb4/ca63fb7af9d3/3c0d36972edb/25571a12fbc8/7077c22f84f4/f6638e955ca0/aee1955a1509/e8021b94b041 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (207738). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 207738
Nessus Name: Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-7009-2)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.19.316/5.4.278/5.10.219/5.15.161/6.1.93/6.6.33/6.9.4
Patch: 2b649d7e0cb4/ca63fb7af9d3/3c0d36972edb/25571a12fbc8/7077c22f84f4/f6638e955ca0/aee1955a1509/e8021b94b041

Timelineinfo

06/21/2024 🔍
06/21/2024 +0 days 🔍
06/21/2024 +0 days 🔍
10/03/2025 +469 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-38659 (🔍)
GCVE (CVE): GCVE-0-2024-38659
GCVE (VulDB): GCVE-100-269363

Entryinfo

Created: 06/21/2024 14:06
Updated: 10/03/2025 18:37
Changes: 06/21/2024 14:06 (59), 07/15/2024 11:10 (2), 09/30/2024 04:23 (2), 10/03/2025 18:37 (11)
Complete: 🔍
Cache ID: 216::103

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