Ubuntu Linux overlayfs ovl_copy_up_meta_inode_data permission

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.8$5k-$25k0.00

Summaryinfo

A vulnerability was found in Ubuntu Linux. It has been rated as critical. This issue affects the function ovl_copy_up_meta_inode_data of the component overlayfs. This manipulation causes permission. The identification of this vulnerability is CVE-2023-32629. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in Ubuntu Linux (Operating System) (version unknown). Affected by this vulnerability is the function ovl_copy_up_meta_inode_data of the component overlayfs. The manipulation with an unknown input leads to a permission vulnerability. The CWE definition for the vulnerability is CWE-275. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Local privilege escalation vulnerability in Ubuntu Kernels overlayfs ovl_copy_up_meta_inode_data skip permission checks when calling ovl_do_setxattr on Ubuntu kernels

The weakness was shared 07/26/2023 as USN-6250-1. This vulnerability is known as CVE-2023-32629 since 06/29/2023. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/21/2026). The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 315743 (Ubuntu 22.04 LTS : Linux kernel (Xilinx ZynqMP) vulnerabilities (USN-8275-1)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (315743). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.8
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (Canonical Ltd.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 315743
Nessus Name: Ubuntu 22.04 LTS : Linux kernel (Xilinx ZynqMP) vulnerabilities (USN-8275-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/29/2023 🔍
07/26/2023 +27 days 🔍
07/26/2023 +0 days 🔍
05/21/2026 +1030 days 🔍

Sourcesinfo

Vendor: ubuntu.com

Advisory: USN-6250-1
Status: Confirmed

CVE: CVE-2023-32629 (🔍)
GCVE (CVE): GCVE-0-2023-32629
GCVE (VulDB): GCVE-100-235459

Entryinfo

Created: 07/26/2023 11:21
Updated: 05/21/2026 21:41
Changes: 07/26/2023 11:21 (48), 08/18/2023 20:13 (1), 08/18/2023 20:21 (1), 05/21/2026 21:41 (17)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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