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RHSA-2017:2000
No affected components available
Red Hat Security Advisory: tigervnc and fltk security, bug fix, and enhancement update
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
- CVE-2016-10207
The Xvnc server in TigerVNC allows remote attackers to cause a denial of service (invalid memory access and crash) by terminating a TLS handshake early.
Upstream, EPSS 3.18% - CVE-2017-5581
Buffer overflow in the ModifiablePixelBuffer::fillRect function in TigerVNC before 1.7.1 allows remote servers to execute arbitrary code via an RRE message with subrectangle outside framebuffer boundaries.
Upstream, EPSS 4.25% - CVE-2017-7392
In TigerVNC 1.7.1 (SSecurityVeNCrypt.cxx SSecurityVeNCrypt::SSecurityVeNCrypt), an unauthenticated client can cause a small memory leak in the server.
Upstream, EPSS 1.72% - CVE-2017-7393
In TigerVNC 1.7.1 (VNCSConnectionST.cxx VNCSConnectionST::fence), an authenticated client can cause a double free, leading to denial of service or potentially code execution.
Upstream, EPSS 1.82% - CVE-2017-7394
In TigerVNC 1.7.1 (SSecurityPlain.cxx SSecurityPlain::processMsg), unauthenticated users can crash the server by sending long usernames.
Upstream, EPSS 1.61% - CVE-2017-7395
In TigerVNC 1.7.1 (SMsgReader.cxx SMsgReader::readClientCutText), by causing an integer overflow, an authenticated client can crash the server.
Upstream, EPSS 1.43% - CVE-2017-7396
In TigerVNC 1.7.1 (CConnection.cxx CConnection::CConnection), an unauthenticated client can cause a small memory leak in the server.
Upstream, EPSS 2.03% - EUVD-2016-1392Upstream
- EUVD-2017-14682Upstream
- EUVD-2017-16417Upstream
- EUVD-2017-16418Upstream
- EUVD-2017-16419Upstream
- EUVD-2017-16420Upstream
- EUVD-2017-16421Upstream
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