Vulnerability Details : CVE-2018-18650
Potential exploit
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 category: OverflowDenial of service
Products affected by CVE-2018-18650
- cpe:2.3:a:xpdfreader:xpdf:4.00:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-18650
0.18%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 36 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-18650
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2018-18650
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-18650
-
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747
two bugs in pdftohtml - forum.xpdfreader.comExploit;Third Party Advisory
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/152006
Xpdf XRef.cc denial of service CVE-2018-18650 Vulnerability ReportThird Party Advisory
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