CVE-2017-7395: Integer Overflow
First published: Sat Apr 01 2017(Updated: )
In TigerVNC (SMsgReader.cxx SMsgReader::readClientCutText), an authenticated client can crash the server by causing an integer overflow. Upstream patch: <a href="https://github.com/TigerVNC/tigervnc/pull/436/commits/bf3bdac082978ca32895a4b6a123016094905689">https://github.com/TigerVNC/tigervnc/pull/436/commits/bf3bdac082978ca32895a4b6a123016094905689</a>
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| TigerVNC | =1.7.1 |
Remedy
https://github.com/TigerVNC/tigervnc/pull/436/commits/bf3bdac082978ca32895a4b6a123016094905689
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Reference Links
- http://www.securityfocus.com/bid/97305
- https://access.redhat.com/errata/RHSA-2017:2000
- https://github.com/TigerVNC/tigervnc/pull/436
- https://github.com/TigerVNC/tigervnc/pull/436/commits/bf3bdac082978ca32895a4b6a123016094905689
- https://security.gentoo.org/glsa/201801-13
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1438704
- https://bugzilla.redhat.com/show_bug.cgi?id=1438701
Frequently Asked Questions
What is the severity of CVE-2017-7395?
CVE-2017-7395 is categorized as a vulnerability that can allow an authenticated client to crash the TigerVNC server.
How do I fix CVE-2017-7395?
To fix CVE-2017-7395, users should update TigerVNC to version 1.7.2 or later, which includes the necessary patches.
What versions of TigerVNC are affected by CVE-2017-7395?
CVE-2017-7395 affects TigerVNC version 1.7.1.
Can CVE-2017-7395 be exploited remotely?
CVE-2017-7395 requires an authenticated client, meaning exploitation can occur only from users with access to the server.
What are the consequences of CVE-2017-7395?
The main consequence of CVE-2017-7395 is a denial of service, as it allows an authenticated client to crash the TigerVNC server.
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