Vulnerability Details : CVE-2019-15679
TightVNC code version 1.3.10 contains heap buffer overflow in InitialiseRFBConnection function, which can potentially result code execution. This attack appear to be exploitable via network connectivity.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2019-15679
- cpe:2.3:a:tightvnc:tightvnc:1.3.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-15679
2.17%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 90 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-15679
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2019-15679
-
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().Assigned by: vulnerability@kaspersky.com (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-15679
-
https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
[SECURITY] [DLA 2045-1] tightvnc security update
-
https://cert-portal.siemens.com/productcert/pdf/ssa-478893.pdf
-
https://www.openwall.com/lists/oss-security/2018/12/10/5
oss-security - libvnc and tightvnc vulnerabilitiesMailing List;Third Party Advisory
-
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-08
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