CVE-2020-27771
ImageMagick Out-of-Bounds Read Vulnerability
Description
In RestoreMSCWarning() of /coders/pdf.c there are several areas where calls to GetPixelIndex() could result in values outside the range of representable for the unsigned char type. The patch casts the return value of GetPixelIndex() to ssize_t type to avoid this bug. This undefined behavior could be triggered when ImageMagick processes a crafted pdf file. Red Hat Product Security marked this as Low severity because although it could potentially lead to an impact to application availability, no specific impact was demonstrated in this case. This flaw affects ImageMagick versions prior to 7.0.9-0.
INFO
Published Date :
Dec. 4, 2020, 3:15 p.m.
Last Modified :
March 11, 2023, 11:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
1.4
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-27771 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-27771
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2020-27771.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1898290 | Exploit Issue Tracking Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00030.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html |
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).
CVEs and Techniques used PDF as an attack vector.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-27771 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-27771 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 -
CVE Modified by [email protected]
Mar. 11, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html [No Types Assigned] -
Reanalysis by [email protected]
Jun. 02, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* versions up to (excluding) 7.0.9 OR *cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* versions up to (excluding) 6.9.10-69 *cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* versions from (including) 7.0.0-0 up to (excluding) 7.0.9 -
Modified Analysis by [email protected]
Mar. 25, 2021
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/03/msg00030.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/03/msg00030.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 24, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/03/msg00030.html [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 07, 2020
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1898290 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1898290 Exploit, Issue Tracking, Patch, Third Party Advisory Added CWE NIST CWE-190 Added CPE Configuration OR *cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* versions up to (excluding) 7.0.9 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-27771 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-2020-27771
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.00%
score
0.32116
percentile