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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-2640 Detail

Description

On Ubuntu kernels carrying both c914c0e27eb0 and "UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640 Third Party Advisory 
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640 Third Party Advisory 
https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html Mailing List  Patch 
https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html Mailing List  Patch 
https://ubuntu.com/security/notices/USN-6250-1 Vendor Advisory 
https://ubuntu.com/security/notices/USN-6250-1 Vendor Advisory 
https://wiz.io/blog/ubuntu-overlayfs-vulnerability Exploit  Mitigation  Third Party Advisory 
https://wiz.io/blog/ubuntu-overlayfs-vulnerability Exploit  Mitigation  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-863 Incorrect Authorization cwe source acceptance level NIST   Canonical Ltd.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-2640
NVD Published Date:
07/25/2023
NVD Last Modified:
11/21/2024
Source:
Canonical Ltd.