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CVE-2023-2640 (GCVE-0-2023-2640)

Vulnerability from cvelistv5 – Published: 2023-07-26 01:59 – Updated: 2024-10-23 14:59
VLAI
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-23 14:57 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Canonical Ubuntu Kernel Unaffected: 0 , < 6.2.0-26.26 (semver)
Unaffected: 0 , < 6.0.0-1020.20 (semver)
Unaffected: 0 , < 5.4.0-155.172 (semver)
guessed Create a notification for this product.
canonical ubantu_kernel Affected: 0 , < 6.2.0-26.26 (semver)
Affected: 0 , < 6.0.0-1020.20 (semver)
Affected: 0 , < 5.4.0-155.172 (semver)
    cpe:2.3:o:canonical:ubantu_kernel:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2023-06-06 00:00
Credits
Stonejiajia Shir Tamari Sagi Tzadik
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.