CVE-2019-20788 (GCVE-0-2019-20788)
Vulnerability from cvelistv5 – Published: 2020-04-23 18:06 – Updated: 2024-08-05 02:53
VLAI
EPSS
VEX
Summary
libvncclient/cursor.c in LibVNCServer through 0.9.12 has a HandleCursorShape integer overflow and heap-based buffer overflow via a large height or width value. NOTE: this may overlap CVE-2019-15690.
Severity
9.8 (Critical)
CWE
- n/a
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/LibVNC/libvncserver/commit/542… | x_refsource_MISC |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://usn.ubuntu.com/4407-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://securitylab.github.com/advisories/GHSL-20… | x_refsource_MISC |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
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"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-26T23:44:54+00:00",
"cve": "CVE-2019-20788",
"id": "CVE-2019-20788",
"initial_release_date": "2019-11-17T00:00:00+00:00",
"product_status:fixed": "69",
"product_status:known_not_affected": "3",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "libvncserver: integer overflow and heap-based buffer overflow in libvncclient/cursor.c in HandleCursorShape function",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-20788.json",
"version": "3"
}
}
}
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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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