CVE-2019-8262: siemens sinumerik_access_mymachine\/p2p Heap-based Buffer Overflow

Vulnerability summary

CVE-2019-8262 is a critical (CVSS 9.8) Heap-based Buffer Overflow vulnerability in siemens sinumerik_access_mymachine\/p2p. EPSS estimates a 4.84% chance of exploitation in the next 30 days, higher than 91.9% of scored vulnerabilities.

Timeline

1. 05-03-2019
   PublishedVulnerability first disclosed.
2. 16-09-2024
   Last modifiedVulnerability information updated.

Description

UltraVNC revision 1203 has multiple heap buffer overflow vulnerabilities in VNC client code inside Ultra decoder, which results in code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1204.

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.