CVE-2019-17624: x.org x_server Out-of-bounds Write
Vulnerability summary
CVE-2019-17624 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in x.org x_server. EPSS estimates a 3.69% chance of exploitation in the next 30 days, higher than 89.6% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 16-10-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
"" In X.Org X Server 1.20.4, there is a stack-based buffer overflow in the function XQueryKeymap. For example, by sending ct.c_char 1000 times, an attacker can cause a denial of service (application crash) or possibly have unspecified other impact. Note: It is disputed if the X.Org X Server is involved or if there is a stack overflow.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
3.69%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
0.00 pp
From 3.69% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundX.Org X Server 1.20.4 - Local Stack Overflow
Maturity: poc
Weaknesses
CWE · root causeAffected systems
X.org1 product
- x_server≤ 1.20.4
1 vendor · 1 product
References
3 links- packetstormsecurity.com/files/154868/X.Org-X-Server-1.20.4-Local-Stack-Overflow.htmlX Refsource MISCThird Party Advisory