CVE-2020-7065 (GCVE-0-2020-7065)
Vulnerability from cvelistv5 – Published: 2020-04-01 03:35 – Updated: 2024-09-17 04:25
VLAI
EPSS
VEX
Title
mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_full
Summary
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.
Severity
7.4 (High)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://usn.ubuntu.com/4330-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://usn.ubuntu.com/4330-2/ | vendor-advisoryx_refsource_UBUNTU |
| https://www.debian.org/security/2020/dsa-4719 | vendor-advisoryx_refsource_DEBIAN |
| https://security.netapp.com/advisory/ntap-2020040… | x_refsource_CONFIRM |
| https://www.oracle.com/security-alerts/cpuoct2021.html | x_refsource_MISC |
| https://bugs.php.net/bug.php?id=79371 | x_refsource_MISC |
| https://www.php.net/ChangeLog-7.php#7.4.4 | x_refsource_CONFIRM |
| https://www.tenable.com/security/tns-2021-14 | x_refsource_CONFIRM |
Impacted products
Date Public
2020-03-17 00:00
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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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