Double Free in Tigervnc
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.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Tigervnc — versions 1.7.1
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2017:2000 (vendor-advisory)
- www.securityfocus.com/bid/97305 (vdb-entry)
- github.com/TigerVNC/tigervnc/pull/438 (Patch, Third Party Advisory, Issue Tracking)
- security.gentoo.org/glsa/201801-13 (vendor-advisory)
Frequently asked questions
- What is CVE-2017-7393?
- CVE-2017-7393 is a high-severity vulnerability in Tigervnc, classified under Double Free. CVSS score: 8.8/10. Published 2017-04-01.
- How severe is CVE-2017-7393?
- High severity. CVSS v3 base score is 8.8 out of 10.