Vulnerability Details : CVE-2018-9947
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.0.29935. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of BMP images. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, heap-based buffer. An attacker can leverage this vulnerability to execute code under the context of the current process. Was ZDI-CAN-5472.
Vulnerability category: OverflowExecute code
Products affected by CVE-2018-9947
- cpe:2.3:a:foxitsoftware:foxit_reader:*:*:*:*:*:*:*:*
- cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-9947
1.32%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-9947
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2018-9947
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
-
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Assigned by: zdi-disclosures@trendmicro.com (Secondary)
References for CVE-2018-9947
-
https://zerodayinitiative.com/advisories/ZDI-18-331
ZDI-18-331 | Zero Day InitiativeThird Party Advisory;VDB Entry
-
https://www.foxitsoftware.com/support/security-bulletins.php
Security Bulletins | Foxit SoftwarePatch;Vendor Advisory
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