Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2019-8259

UltraVNC revision 1198 contains multiple memory leaks (CWE-655) in VNC client code, which allow 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 1199.

Published

2019-03-05T15:29:00.367

Last Modified

2024-11-21T04:49:35.657

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-665
Type: Primary
CWE-401

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	uvnc	ultravnc	< 1.2.2.3	Yes
Application	siemens	sinumerik_access_mymachine\/p2p	< 4.8	Yes
Application	siemens	sinumerik_pcu_base_win10_software\/ipc	< 14.00	Yes
Application	siemens	sinumerik_pcu_base_win7_software\/ipc	≤ 12.01	Yes

References

https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf Third Party Advisory ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf ([email protected])
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-005-ultravnc-memory-leak/ Third Party Advisory ([email protected])
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11 ([email protected])
https://www.us-cert.gov/ics/advisories/icsa-20-161-06 Third Party Advisory, US Government Resource ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf (af854a3a-2127-422b-91ae-364da2661108)
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf (af854a3a-2127-422b-91ae-364da2661108)
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-005-ultravnc-memory-leak/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11 (af854a3a-2127-422b-91ae-364da2661108)
https://www.us-cert.gov/ics/advisories/icsa-20-161-06 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)