LibTIFF 4.0.5 tif_lzw.c LZWEncode out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in LibTIFF 4.0.5. Affected by this vulnerability is the function LZWEncode of the file tif_lzw.c. Such manipulation leads to out-of-bounds. This vulnerability is traded as CVE-2016-3621. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in LibTIFF 4.0.5 (Image Processing Software). Affected by this issue is the function LZWEncode of the file tif_lzw.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The LZWEncode function in tif_lzw.c in the bmp2tiff tool in LibTIFF 4.0.6 and earlier, when the "-c lzw" option is used, allows remote attackers to cause a denial of service (buffer over-read) via a crafted BMP image.

The weakness was shared 04/07/2016 as confirmed mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2016-3621 since 03/21/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 94474 (Debian DLA-693-2 : tiff regression update), 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 171720 (SUSE Enterprise Linux Security Update for tiff (SUSE-SU-2018:3879-1)).

Upgrading to version 4.0.6 eliminates this vulnerability. A possible mitigation has been published 11 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (112049), Tenable (94474) and SecurityFocus (BID 72326†). The entries VDB-81883, VDB-81886, VDB-92306 and VDB-92310 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.6

VulDB Base Score: 9.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 94474
Nessus Name: Debian DLA-693-2 : tiff regression update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 64341
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 693-2] tiff regression update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: LibTIFF 4.0.6

Timelineinfo

03/21/2016 🔍
04/07/2016 +17 days 🔍
04/11/2016 +4 days 🔍
10/03/2016 +175 days 🔍
11/02/2016 +30 days 🔍
02/06/2017 +96 days 🔍
07/13/2022 +1982 days 🔍

Sourcesinfo

Product: libtiff.org

Advisory: seclists.org
Status: Confirmed

CVE: CVE-2016-3621 (🔍)
GCVE (CVE): GCVE-0-2016-3621
GCVE (VulDB): GCVE-100-81884
X-Force: 112049 - LibTIFF LZWEncode denial of service
SecurityFocus: 72326
SecurityTracker: 1035508

See also: 🔍

Entryinfo

Created: 04/11/2016 10:09
Updated: 07/13/2022 08:50
Changes: 04/11/2016 10:09 (60), 09/30/2018 09:16 (20), 07/13/2022 08:50 (4)
Complete: 🔍
Cache ID: 216:776:103

Once again VulDB remains the best source for vulnerability data.

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