Ghostscript - Heap-based Buffer Overflow Vulnerability
Summary
DLA-1048-1: ghostscript - security update. Affects ghostscript versions < 9.05~dfsg-6.3+deb7u7. Fixed in 9.05~dfsg-6.3+deb7u7. How to fix ↓
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Background
Ghostscript is an open-source PostScript and PDF interpreter used for rendering and manipulating documents. It provides functionality for converting PostScript files to PDF format and vice versa, as well as rendering and printing these documents. The vulnerability in question is a heap-based buffer overflow that can be triggered by a specially crafted PostScript document. This can lead to a denial of service or potentially have other unspecified impacts.
Vulnerability Detail
The vulnerability in Ghostscript arises from several issues that allow remote attackers to exploit the software. By sending a maliciously crafted PostScript document, an attacker can trigger a heap-based buffer overflow, causing the application to crash or potentially execute arbitrary code. The exact impact of the vulnerability is unspecified, but it poses a significant risk to the stability and security of systems running vulnerable versions of Ghostscript.
How To Fix
Minimum fixed version
9.05~dfsg-6.3+deb7u7
This is the first release that contains the fix.
sudo apt-get install --only-upgrade ghostscriptTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
No workaround has been provided for this vulnerability. It is essential to apply the recommended fix by upgrading to the patched version of Ghostscript.
Conclusion
The heap-based buffer overflow vulnerability in Ghostscript poses a significant risk to systems running vulnerable versions of the software. It is crucial to upgrade to the patched version (9.05~dfsg-6.3+deb7u7 or later) to ensure the security and stability of your system. For further support and assistance with vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for ghostscript →
FAQ
Ghostscript is an open-source PostScript and PDF interpreter used for rendering and manipulating documents. It provides functionality for converting PostScript files to PDF format and vice versa, as well as rendering and printing these documents.
A heap-based buffer overflow is a type of vulnerability where an attacker can overwrite data in the heap memory of a program. By sending a specially crafted input, the attacker can exceed the allocated buffer size and overwrite adjacent memory, potentially leading to a crash or arbitrary code execution.
This vulnerability can be exploited by sending a maliciously crafted PostScript document to a vulnerable instance of Ghostscript. The document triggers a heap-based buffer overflow, causing the application to crash or potentially execute arbitrary code.
The exact impacts of this vulnerability are unspecified, but they can include denial of service, application crashes, and potentially arbitrary code execution. Exploiting this vulnerability can compromise the stability and security of systems running vulnerable versions of Ghostscript.
To protect your system, it is crucial to upgrade your Ghostscript installation to version 9.05~dfsg-6.3+deb7u7 or later. This update includes patches that address the identified issues and prevent the exploitation of the heap-based buffer overflow.
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