Integer overflow in Xpdfreader Xpdf
CVE-2018-18650
An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Xpdfreader Xpdf — versions 4.00
Weakness classification (CWE)
Public proof-of-concept exploits
References
- forum.xpdfreader.com/viewtopic.php (Exploit, Third Party Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/152006 (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-18650?
- CVE-2018-18650 is a medium-severity vulnerability in Xpdfreader Xpdf, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2018-10-25.
- How severe is CVE-2018-18650?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2018-18650 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.