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NVD Vulnerability Details :
CVE-2023-2640
Analyzed
More InfoOfficial Page
Source-security@ubuntu.com
View Known Exploited Vulnerability (KEV) details
Published At-26 Jul, 2023 | 02:15
Updated At-03 Aug, 2023 | 15:10

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Secondary3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CPE Matches
Canonical Ltd.
canonical
>>ubuntu_linux>>23.04
cpe:2.3:o:canonical:ubuntu_linux:23.04:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-863Primarynvd@nist.gov
CWE-863Secondarysecurity@ubuntu.com
CWE ID: CWE-863
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-863
Type: Secondary
Source: security@ubuntu.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640security@ubuntu.com
Third Party Advisory
https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.htmlsecurity@ubuntu.com
Mailing List
Patch
https://ubuntu.com/security/notices/USN-6250-1security@ubuntu.com
Vendor Advisory
https://wiz.io/blog/ubuntu-overlayfs-vulnerabilitysecurity@ubuntu.com
Exploit
Mitigation
Third Party Advisory
Hyperlink: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640
Source: security@ubuntu.com
Resource:
Third Party Advisory
Hyperlink: https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html
Source: security@ubuntu.com
Resource:
Mailing List
Patch
Hyperlink: https://ubuntu.com/security/notices/USN-6250-1
Source: security@ubuntu.com
Resource:
Vendor Advisory
Hyperlink: https://wiz.io/blog/ubuntu-overlayfs-vulnerability
Source: security@ubuntu.com
Resource:
Exploit
Mitigation
Third Party Advisory
Change History
0Changes found
Details not found