Vulnerability Details : CVE-2017-7395
In TigerVNC 1.7.1 (SMsgReader.cxx SMsgReader::readClientCutText), by causing an integer overflow, an authenticated client can crash the server.
Vulnerability category: Overflow
Exploit prediction scoring system (EPSS) score for CVE-2017-7395
Probability of exploitation activity in the next 30 days: 0.12%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 45 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-7395
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:N/A:P |
8.0
|
2.9
|
NIST |
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2017-7395
-
The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-7395
-
https://github.com/TigerVNC/tigervnc/pull/436/commits/bf3bdac082978ca32895a4b6a123016094905689
Fixes by michalsrb · Pull Request #436 · TigerVNC/tigervnc · GitHubIssue Tracking;Patch;Third Party Advisory
-
http://www.securityfocus.com/bid/97305
TigerVNC Multiple Security Vulnerabilities
-
https://security.gentoo.org/glsa/201801-13
TigerVNC: Multiple vulnerabilities (GLSA 201801-13) — Gentoo security
-
https://access.redhat.com/errata/RHSA-2017:2000
RHSA-2017:2000 - Security Advisory - Red Hat Customer Portal
-
https://github.com/TigerVNC/tigervnc/pull/436
Fixes by michalsrb · Pull Request #436 · TigerVNC/tigervnc · GitHubIssue Tracking;Patch;Third Party Advisory
Products affected by CVE-2017-7395
- cpe:2.3:a:tigervnc:tigervnc:1.7.1:*:*:*:*:*:*:*