Improper input validation in The X.org Foundation Xorg-x11-server
CVE-2017-12178
xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
EPSS: 0.042 (89.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- The X.org Foundation Xorg-x11-server — versions before 1.19.5
- X.org X_server
- Debian Debian_linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, VDB Entry, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (vendor-advisory, VDB Entry, Third Party Advisory, x_refsource_GENTOO)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-12178?
- CVE-2017-12178 is a critical-severity vulnerability in The X.org Foundation Xorg-x11-server, classified under CWE-391. CVSS score: 9.8/10. Published 2018-01-24.
- How severe is CVE-2017-12178?
- Critical severity. CVSS v3 base score is 9.8 out of 10.