PT-2017-3840 · Graphicsmagick · Graphicsmagick
L. Catro
·
Published
2017-07-25
·
Updated
2018-10-28
·
CVE-2017-11722
CVSS v2.0
7.8
High
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
GraphicsMagick version 1.3.26
Description
The issue is related to the WriteOnePNGImage function in the coders/png.c file of the GraphicsMagick library, which is vulnerable to a buffer overflow read in dynamic memory. This can be exploited by a remote attacker using a specially crafted file, potentially leading to a denial of service (out-of-bounds read and application crash). The problem arises from inconsistent control flow in the program, causing a logging statement to execute outside of a loop and resulting in the use of an invalid array index.
Recommendations
For GraphicsMagick version 1.3.26, consider disabling the WriteOnePNGImage function as a temporary workaround until a patch is available. Restrict access to the coders/png.c module to minimize the risk of exploitation. Avoid using the GraphicsMagick library to process untrusted or specially crafted files until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Graphicsmagick