libpng 1.0.15/1.2.16 tRNS Chunk denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in libpng 1.0.15/1.2.16 and classified as problematic. This issue affects some unknown processing of the component tRNS Chunk Handler. The manipulation results in denial of service. This vulnerability is cataloged as CVE-2007-2445. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in libpng 1.0.15/1.2.16 (Image Processing Software). It has been classified as critical. Affected is an unknown code of the component tRNS Chunk Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

The png_handle_tRNS function in pngrutil.c in libpng before 1.0.25 and 1.2.x before 1.2.17 allows remote attackers to cause a denial of service (application crash) via a grayscale PNG image with a bad tRNS chunk CRC value.

The bug was discovered 05/15/2007. The weakness was shared 05/16/2007 with libpng Project (Website). The advisory is shared for download at kent.dl.sourceforge.net. This vulnerability is traded as CVE-2007-2445 since 05/02/2007. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 23455 (Solaris 8 (x86) : 114817-04), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Solaris Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156100 (Oracle Enterprise Linux Update for libpng (ELSA-2007-0356)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at kent.dl.sourceforge.net. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (34340), Tenable (23455), SecurityFocus (BID 24023†), OSVDB (36196†) and Secunia (SA34388†). The entry VDB-2691 is related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 23455
Nessus Name: Solaris 8 (x86) : 114817-04
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 61363
OpenVAS Name: Debian Security Advisory DSA 1613-1 (libgd2)
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: 🔍

Patch: kent.dl.sourceforge.net
McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

11/06/2006 🔍
05/02/2007 +177 days 🔍
05/15/2007 +13 days 🔍
05/16/2007 +1 days 🔍
05/16/2007 +0 days 🔍
05/16/2007 +0 days 🔍
05/16/2007 +0 days 🔍
05/16/2007 +0 days 🔍
05/17/2007 +0 days 🔍
05/18/2007 +1 days 🔍
05/27/2007 +9 days 🔍
07/22/2008 +422 days 🔍
03/23/2009 +244 days 🔍
01/13/2025 +5775 days 🔍

Sourcesinfo

Advisory: kent.dl.sourceforge.net
Organization: libpng Project
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-2445 (🔍)
GCVE (CVE): GCVE-0-2007-2445
GCVE (VulDB): GCVE-100-3084

OVAL: 🔍

CERT: 🔍
X-Force: 34340 - libpng tRNS chunk denial of service, Medium Risk
SecurityFocus: 24023 - Retired: Libpng Library Grayscale Image CRC Check Remote Denial of Service Vulnerability
Secunia: 34388
OSVDB: 36196 - libpng png_handle_tRNS Function tRNS Chunk DoS
SecurityTracker: 1018078
Vulnerability Center: 15229 - Libpng Malicious PNG Files Handle Failure Allows Remote Attacker to Cause DoS, Medium
Vupen: ADV-2007-2385

See also: 🔍

Entryinfo

Created: 05/18/2007 10:53
Updated: 01/13/2025 01:52
Changes: 05/18/2007 10:53 (104), 07/19/2019 20:14 (1), 01/13/2025 01:52 (17)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!