TightVNC code version 1.3.10 contains heap buffer overflow in rfbServerCutText handler, which can potentially result code execution.. This attack appear to be exploitable via network connectivity.
A 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().
The product writes data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://www.openwall.com/lists/oss-security/2018/12/10/5 | third party advisory mailing list |
| https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html | mailing list |
| https://cert-portal.siemens.com/productcert/pdf/ssa-478893.pdf | |
| https://us-cert.cisa.gov/ics/advisories/icsa-20-343-08 |