Integer overflow in The X.org Foundation Xorg-x11-server

CVE-2017-12179

xorg-x11-server before 1.19.5 was vulnerable to integer overflow in (S)ProcXIBarrierReleasePointer functions allowing malicious X client to cause X server to crash or possibly execute arbitrary code.

EPSS: 0.045 (90.2th 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-12179?
CVE-2017-12179 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-2017-12179?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2017-12179 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.