CVE-2020-1921 (GCVE-0-2020-1921)
Vulnerability from cvelistv5 – Published: 2021-03-10 15:50 – Updated: 2024-08-04 06:54
VLAI?
Summary
In the crypt function, we attempt to null terminate a buffer using the size of the input salt without validating that the offset is within the buffer. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.
Severity ?
No CVSS data available.
CWE
- CWE-121 - Stack-based Buffer Overflow (CWE-121)
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| HHVM |
Unaffected:
4.98.1 , < unspecified
(custom)
Affected: 4.98.0 Unaffected: 4.97.1 , < unspecified (custom) Affected: 4.97.0 Unaffected: 4.96.1 , < unspecified (custom) Affected: 4.96.0 Unaffected: 4.95.1 , < unspecified (custom) Affected: 4.95.0 Unaffected: 4.94.1 , < unspecified (custom) Affected: 4.94.0 Unaffected: 4.93.2 , < unspecified (custom) Affected: 4.81.0 , < unspecified (custom) Unaffected: 4.80.2 , < unspecified (custom) Affected: 4.57.0 , < unspecified (custom) Unaffected: 4.56.3 , < unspecified (custom) Affected: unspecified , < 4.56.3 (custom) |
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}
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Sightings
| Author | Source | Type | Date |
|---|
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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