CVE-2023-52479 (GCVE-0-2023-52479)
Vulnerability from cvelistv5 – Published: 2024-02-29 05:43 – Updated: 2026-08-15 12:23
VLAI
EPSS
VEX
Title
ksmbd: fix uaf in smb20_oplock_break_ack
Summary
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix uaf in smb20_oplock_break_ack
drop reference after use opinfo.
Severity
8.8 (High)
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-22 15:51 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 694e13732e830cbbfedb562e57f28644927c33fd
(git)
Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 8226ffc759ea59f10067b9acdf7f94bae1c69930 (git) Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < d5b0e9d3563e7e314a850e81f42b2ef6f39882f9 (git) Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < c69813471a1ec081a0b9bf0c6bd7e8afd818afce (git) |
guessed | |
| Linux | Linux |
Affected:
5.15
Unaffected: 0 , < 5.15 (semver) Unaffected: 5.15.135 , ≤ 5.15.* (semver) Unaffected: 6.1.57 , ≤ 6.1.* (semver) Unaffected: 6.5.7 , ≤ 6.5.* (semver) Unaffected: 6.6 , ≤ * (original_commit_for_fix) |
guessed |
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"product_status:known_not_affected": "198",
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"status": "interim",
"title": "SUSE CVE CVE-2023-52479",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-52479.json",
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"vulnrichment": {
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"title": "CVE Program Container"
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"role": "CISA Coordinator",
"timestamp": "2025-04-22T15:51:22.969165Z",
"version": "2.0.3"
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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