CVE-2018-9918
QPDF Denial of Service Stack Exhaustion
Description
libqpdf.a in QPDF through 8.0.2 mishandles certain "expected dictionary key but found non-name object" cases, allowing remote attackers to cause a denial of service (stack exhaustion), related to the QPDFObjectHandle and QPDF_Dictionary classes, because nesting in direct objects is not restricted.
INFO
Published Date :
April 10, 2018, 6:29 p.m.
Last Modified :
Nov. 21, 2024, 4:15 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-9918.
| URL | Resource |
|---|---|
| https://github.com/qpdf/qpdf/commit/b4d6cf6836ce025ba1811b7bbec52680c7204223 | Patch |
| https://github.com/qpdf/qpdf/issues/202 | Exploit Issue Tracking Patch Third Party Advisory |
| https://usn.ubuntu.com/3638-1/ | Third Party Advisory |
| https://github.com/qpdf/qpdf/commit/b4d6cf6836ce025ba1811b7bbec52680c7204223 | Patch |
| https://github.com/qpdf/qpdf/issues/202 | Exploit Issue Tracking Patch Third Party Advisory |
| https://usn.ubuntu.com/3638-1/ | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-9918 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-9918 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-399 CWE-399 CWE-674 -
Initial Analysis by [email protected]
May. 23, 2018
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/qpdf/qpdf/issues/202 No Types Assigned https://github.com/qpdf/qpdf/issues/202 Exploit, Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3638-1/ No Types Assigned https://usn.ubuntu.com/3638-1/ Third Party Advisory Changed Reference Type https://github.com/qpdf/qpdf/commit/b4d6cf6836ce025ba1811b7bbec52680c7204223 No Types Assigned https://github.com/qpdf/qpdf/commit/b4d6cf6836ce025ba1811b7bbec52680c7204223 Patch Added CWE CWE-399 Added CPE Configuration OR *cpe:2.3:a:qpdf_project:qpdf:*:*:*:*:*:*:*:* versions up to (including) 8.0.2 Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 08, 2018
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3638-1/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 16, 2018
Action Type Old Value New Value Changed Description libqpdf.a in QPDF through 8.0.2 mishandles certain "expected dictionary key but found non-name object" cases, allowing remote attackers to cause a denial of service (stack exhaustion), related to the QPDFObjectHandle and QPDF_Dictionary classes. libqpdf.a in QPDF through 8.0.2 mishandles certain "expected dictionary key but found non-name object" cases, allowing remote attackers to cause a denial of service (stack exhaustion), related to the QPDFObjectHandle and QPDF_Dictionary classes, because nesting in direct objects is not restricted. Added Reference https://github.com/qpdf/qpdf/commit/b4d6cf6836ce025ba1811b7bbec52680c7204223 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-9918 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-9918
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.50 }} 0.00%
score
0.76843
percentile