libpng 1.6.34 pngrutil.c png_check_chunk_length PNG File integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in libpng 1.6.34 and classified as critical. This affects the function png_check_chunk_length of the file pngrutil.c. The manipulation as part of PNG File results in integer overflow. This vulnerability is identified as CVE-2018-13785. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in libpng 1.6.34 (Image Processing Software). Affected is the function png_check_chunk_length of the file pngrutil.c. The manipulation as part of a PNG File leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In libpng 1.6.34, a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c) may trigger an integer overflow and resultant divide-by-zero while processing a crafted PNG file, leading to a denial of service.

The bug was discovered 06/18/2018. The weakness was released 07/09/2018 with Oracle (Website). The advisory is shared for download at github.com. This vulnerability is traded as CVE-2018-13785 since 07/09/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 21 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111040 (Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : libpng, libpng1.6 vulnerabilities (USN-3712-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 237054 (Red Hat Update for java-1.8.0-ibm (RHSA-2018:3533)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111040) and SecurityFocus (BID 105599†). Entries connected to this vulnerability are available at VDB-90449, VDB-91385, VDB-91680 and VDB-91681. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

ADP CISA Base Score: 6.5
ADP CISA Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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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Nessus ID: 111040
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : libpng, libpng1.6 vulnerabilities (USN-3712-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: github.com

Timelineinfo

06/18/2018 🔍
07/09/2018 +20 days 🔍
07/09/2018 +0 days 🔍
07/09/2018 +0 days 🔍
07/10/2018 +1 days 🔍
07/11/2018 +1 days 🔍
07/12/2018 +1 days 🔍
10/16/2018 +96 days 🔍
05/30/2026 +2783 days 🔍

Sourcesinfo

Advisory: USN-3712-1
Organization: Oracle
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-13785 (🔍)
GCVE (CVE): GCVE-0-2018-13785
GCVE (VulDB): GCVE-100-120936

OVAL: 🔍

SecurityFocus: 105599 - Oracle Java SE/Java SE Embedded CVE-2018-13785 Remote Security Vulnerability
SecurityTracker: 1041889

See also: 🔍

Entryinfo

Created: 07/10/2018 09:58
Updated: 05/30/2026 04:19
Changes: 07/10/2018 09:58 (75), 03/03/2020 14:03 (8), 04/05/2023 11:01 (6), 04/05/2023 11:07 (1), 05/30/2026 04:19 (25)
Complete: 🔍
Cache ID: 216::103

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