VDB-124018 · CVE-2018-17000 · USN-3906-1

LibTIFF up to 4.0.9 tif_unix.c TIFFmemcmp null pointer dereference

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5.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in LibTIFF up to 4.0.9. It has been declared as problematic. This issue affects the function TIFFmemcmp of the file tif_unix.c. Executing a manipulation can lead to null pointer dereference. This vulnerability appears as CVE-2018-17000. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in LibTIFF up to 4.0.9 (Image Processing Software). It has been declared as problematic. This vulnerability affects the function TIFFmemcmp of the file tif_unix.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

A NULL pointer dereference in the function _TIFFmemcmp at tif_unix.c (called from TIFFWriteDirectoryTagTransferfunction) in LibTIFF 4.0.9 allows an attacker to cause a denial-of-service through a crafted tiff file. This vulnerability can be triggered by the executable tiffcp.

The bug was discovered 09/13/2018. The weakness was presented 09/13/2018 (Website). The advisory is available at bugzilla.maptools.org. This vulnerability was named CVE-2018-17000 since 09/13/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 197390 (Ubuntu Security Notification for LibTiff Vulnerabilities (USN-3906-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 105342†). See VDB-120001, VDB-129077 and VDB-130695 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Image Processing Software

Name

LibTIFF

Version

License

open-source

Website

Product: http://www.libtiff.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/13/2018 🔍
09/13/2018 +0 days 🔍
09/13/2018 +0 days 🔍
09/13/2018 +0 days 🔍
09/13/2018 +0 days 🔍
09/14/2018 +1 days 🔍
05/16/2023 +1705 days 🔍

Sourcesinfo

Product: libtiff.org

Advisory: USN-3906-1
Status: Confirmed

CVE: CVE-2018-17000 (🔍)
GCVE (CVE): GCVE-0-2018-17000
GCVE (VulDB): GCVE-100-124018
SecurityFocus: 105342 - LibTIFF 'tif_unix.c' Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/14/2018 07:15
Updated: 05/16/2023 09:57
Changes: 09/14/2018 07:15 (61), 03/23/2020 16:18 (3), 05/16/2023 09:57 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.