Linux Kernel skb drivers/net/macvlan.c macvlan_handle_frame memory leak

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability classified as problematic was found in Linux Kernel (Operating System) (the affected version is unknown). This vulnerability affects the function macvlan_handle_frame of the file drivers/net/macvlan.c of the component skb. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The software does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability.

The weakness was shared 10/16/2022. The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2022-3526. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/09/2022). The MITRE ATT&CK project declares the attack technique as T1499.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

Productinfo

Type

Vendor

Name

License

  • open-source

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 5.3
CNA Vector (VulDB): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: git.kernel.org

Timelineinfo

10/16/2022 Advisory disclosed
10/16/2022 +0 days CVE reserved
10/16/2022 +0 days VulDB entry created
11/09/2022 +24 days VulDB last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-3526 (🔒)

Entryinfo

Created: 10/16/2022 07:36 PM
Updated: 11/09/2022 02:13 PM
Changes: 10/16/2022 07:36 PM (41), 11/09/2022 02:12 PM (2), 11/09/2022 02:13 PM (21)
Complete: 🔍

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