CVE-2019-8266
published 2019-03-08CVE-2019-8266: UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC client…
PriorityP355critical9.8CVSS 3.0
AVNACLPRNUINSUCHIHAH
EPSS
2.84%
84.9th percentile
UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. User interaction is required to trigger these vulnerabilities. These vulnerabilities have been fixed in revision 1208.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| kaspersky_lab | ultravnc | — | — |
| uvnc | ultravnc | < 1.2.2.3 | 1.2.2.3 |
CVSS provenance
nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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GHSA
GHSA-h88h-84v5-wrjr: UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC
ghsa_unreviewed·2022-05-13
CVE-2019-8266 [CRITICAL] CWE-125 GHSA-h88h-84v5-wrjr: UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC
UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. User interaction is required to trigger these vulnerabilities. These vulnerabilities have been fixed in revision 1208.
CISA ICS
Siemens SINUMERIK
cisa_ics·2020-06-12·CVSS 9.8
[CRITICAL] Siemens SINUMERIK
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Siemens SINUMERIK
Last RevisedJune 12, 2020
Alert CodeICSA-20-161-06
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low skill level to exploit
- Vendor: Siemens
- Equipment: SINUMERIK
- Vulnerabilities: Buffer Underflow, Heap-based Buffer Overflow, Improper Initialization, Out-of-bounds Read, Stack-based Buffer Overflow, Access of Memory Location After End of Buffer, Off-by-one Error, Improper Null Termination, Improper Initialization
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow remote code execution, informati
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdfhttps://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-013-ultravnc-access-of-memory-location-after-end-of-buffer/https://www.us-cert.gov/ics/advisories/icsa-20-161-06https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdfhttps://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-013-ultravnc-access-of-memory-location-after-end-of-buffer/https://www.us-cert.gov/ics/advisories/icsa-20-161-06
2019-03-08
Published