fkie_cve-2019-12519
Vulnerability from fkie_nvd
Published
2020-04-15 20:15
Modified
2024-11-21 04:23
Severity ?
Summary
An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| squid-cache | squid | * | |
| squid-cache | squid | * | |
| squid-cache | squid | * | |
| debian | debian_linux | 9.0 | |
| debian | debian_linux | 10.0 | |
| canonical | ubuntu_linux | 16.04 | |
| canonical | ubuntu_linux | 18.04 | |
| canonical | ubuntu_linux | 19.10 | |
| canonical | ubuntu_linux | 20.04 | |
| opensuse | leap | 15.1 |
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it\u0027s being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won\u0027t overflow."
},
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"lang": "es",
"value": "Se detect\u00f3 un problema en Squid versiones hasta 4.7. Cuando se maneja la etiqueta esi:when cuando ESI est\u00e1 habilitado, Squid llama a la funci\u00f3n ESIExpression::Evaluate. Esta funci\u00f3n usa un b\u00fafer de pila fijado para contener la expresi\u00f3n mientras se est\u00e1 evaluando. Cuando de procesa la expresi\u00f3n, podr\u00eda evaluar la parte superior de la pila o agregar un nuevo miembro en la pila. Cuando se agrega un nuevo miembro, no se realiza ninguna comprobaci\u00f3n para asegurar que la pila no se desborde."
}
],
"id": "CVE-2019-12519",
"lastModified": "2024-11-21T04:23:01.190",
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"accessVector": "NETWORK",
"authentication": "NONE",
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"baseScore": 7.5,
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"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
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"published": "2020-04-15T20:15:13.473",
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]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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