CVE-2019-8277

Summary

UltraVNC revision 1211 contains multiple memory leaks (CWE-665) in VNC server code, which allows an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212.

Affected Software

Weaknesses

• CWE-665: multiple memory leaks (CWE-665)

ADP Enrichment

CVE Program Container

Additional References

• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-024-ultravnc-improper-initialization/
• https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
• https://www.us-cert.gov/ics/advisories/icsa-20-161-06
• https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11

References

• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-024-ultravnc-improper-initialization/
• https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
• https://www.us-cert.gov/ics/advisories/icsa-20-161-06
• https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11

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