Buffer overflow in X.org X Server
CVE-2019-17624
"" 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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.037 (89.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/47507 (Exploit, VDB Entry, Third Party Advisory)
- www.x.org/releases/individual/xserver/ (Release Notes, Vendor Advisory)
- packetstormsecurity.com/files/154868/X.Org-X-Server-1.20.4-Local-Stack-Overflow… (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-17624?
- CVE-2019-17624 is a high-severity vulnerability in X.org X Server, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2019-10-16.
- How severe is CVE-2019-17624?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-17624 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.