Sumatra PDF up to 1.0 mupdf/pdf_shade4.c memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Sumatra PDF up to 1.0 (Document Reader Software). It has been classified as critical. This affects an unknown code block of the file mupdf/pdf_shade4.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 11/30/2009 by Christophe Devine (Website). The advisory is shared at This vulnerability is uniquely identified as CVE-2009-4117 since 11/30/2009. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed by Christophe Devine and been published even before and not after the advisory. It is declared as proof-of-concept. The exploit is shared for download at The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $25k-$100k.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (54441) and Exploit-DB (10244).





CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Christophe Devine
Download: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍



11/28/2009 🔍
11/28/2009 +0 days 🔍
11/30/2009 +2 days 🔍
11/30/2009 +0 days 🔍
11/30/2009 +0 days 🔍
11/30/2009 +0 days 🔍
12/16/2009 +15 days 🔍
08/18/2017 +2802 days 🔍


Researcher: Christophe Devine
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-4117 (🔍)
X-Force: 54441 - MuPDF multiple pdf_shade4.c buffer overflow, High Risk
Secunia: 37513 - SumatraPDF Shading Pattern Processing Buffer Overflow Vulnerabilities, Highly Critical
OSVDB: 60609 - MuPDF mupdf/pdf_shade4.c Multiple Function PDF File Handling Overflow
Vupen: ADV-2009-3355

scip Labs:


Created: 12/16/2009 10:54 AM
Updated: 08/18/2017 01:48 PM
Changes: 12/16/2009 10:54 AM (75), 08/18/2017 01:48 PM (3)
Complete: 🔍


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