Sam Leffler LibTIFF up to 3.8.2 tiff2pdf DocumentName memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Sam Leffler LibTIFF up to 3.8.2. It has been rated as critical. This issue affects some unknown processing of the component tiff2pdf. The manipulation of the argument DocumentName as part of UTF-8 Chars leads to memory corruption. This vulnerability is listed as CVE-2006-2193. There is no available exploit. It is recommended to replace the affected component with an alternative.

Detailsinfo

A vulnerability was found in Sam Leffler LibTIFF up to 3.8.2 (Image Processing Software). It has been rated as critical. This issue affects an unknown function of the component tiff2pdf. The manipulation of the argument DocumentName as part of a UTF-8 Chars leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the t2p_write_pdf_string function in tiff2pdf in libtiff 3.8.2 and earlier allows attackers to cause a denial of service (crash) and possibly execute arbitrary code via a TIFF file with a DocumentName tag that contains UTF-8 characters, which triggers the overflow when a character is sign extended to an integer that produces more digits than expected in an sprintf call.

The bug was discovered 06/04/2006. The weakness was presented 06/08/2006 by gpe92 with SuSE as Bug 1196 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.remotesensing.org. The identification of this vulnerability is CVE-2006-2193 since 05/04/2006. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 22633 (Debian DSA-1091-1 : tiff - buffer overflows), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117254 (CentOS Security Update for libtiff (CESA-2008:0848)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at remotesensing.org. The problem might be mitigated by replacing the product with as an alternative. The best possible mitigation is suggested to be establishing an alternative product. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (26991), Tenable (22633), SecurityFocus (BID 18331†), OSVDB (26031†) and Secunia (SA31670†). See VDB-43808 for similar entry. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 22633
Nessus Name: Debian DSA-1091-1 : tiff - buffer overflows
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 56923
OpenVAS Name: Debian Security Advisory DSA 1091-1 (tiff)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Alternative
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: remotesensing.org

Timelineinfo

05/04/2006 🔍
06/04/2006 +31 days 🔍
06/08/2006 +4 days 🔍
06/08/2006 +0 days 🔍
06/08/2006 +0 days 🔍
06/08/2006 +0 days 🔍
06/08/2006 +0 days 🔍
06/08/2006 +0 days 🔍
06/19/2006 +10 days 🔍
06/20/2006 +1 days 🔍
10/14/2006 +116 days 🔍
08/29/2008 +685 days 🔍
06/21/2019 +3948 days 🔍

Sourcesinfo

Advisory: Bug 1196
Researcher: gpe92
Organization: SuSE
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-2193 (🔍)
GCVE (CVE): GCVE-0-2006-2193
GCVE (VulDB): GCVE-100-2303

OVAL: 🔍

X-Force: 26991 - LibTIFF tiff2pdf buffer overflow, High Risk
SecurityFocus: 18331 - LibTIFF tiff2pdf Remote Buffer Overflow Vulnerability
Secunia: 31670 - Red Hat update for libtiff, Moderately Critical
OSVDB: 26031 - LibTIFF tiff2pdf t2p_write_pdf_string Function Overflow
Vulnerability Center: 11964 - Libtiff Buffer Overflow in Tiff2PDF Module, Medium
Vupen: ADV-2007-4034

See also: 🔍

Entryinfo

Created: 06/19/2006 11:35
Updated: 06/21/2019 07:41
Changes: 06/19/2006 11:35 (103), 06/21/2019 07:41 (1)
Complete: 🔍
Cache ID: 216:5E8:103

Be aware that VulDB is the high quality source for vulnerability data.

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